{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78148",
    "entityType": "User",
    "nonce": "0x76b740b769c4d930eca3b9706956e969093192abf1fad334a7e59a7f43ad7bf6",
    "signature": "0x907ae94ded497ba610e1077b726d6dd5ae9f6fe5cf536916458f617c003dcff04e8a6bb4c9fd9aaf4921b6ed5f6fd21905b14e6328f6e76da866de000054bad21b",
    "signer": "0x641D58d14cccB895cC85f210F1CD2B998A692F67",
    "userId": "308555958"
  }
}