{
  "manageEntity": {
    "action": "Update",
    "entityId": "678365364",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6zhvh2issp2m6ga3k7yoicd24rnkcil3gn2gjmoafju76gya4gqq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1614237590},{\"type\":\"playlist\",\"playlist_id\":162574270}]}}}",
    "nonce": "0x2dc1fdcfa07ba4ecc3ecbaad56f4b460d39272c72af17ca9a2c86a7bc26e00ab",
    "signature": "0xd9ed082014dc5688564073dad15ef81dcd4e07af327b2db7f9eabfd47875386e73e8cfc48d4479891c5b615e1b8add044b6cc3190ea03d6afe695eb79866aac21b",
    "signer": "0xeF548ec229db5D9d4d114db8e67E23F3D6e7DEe1",
    "userId": "678365364"
  }
}