{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0xcee23cf0d7eb820d95ff3724de9a6fc902c202edf06f1c32c95e6df65e599d29",
    "signature": "0xf3a7950906d903ff29d749a8d060e37a5a4f8ff20bd2fb83123a3fcaa9968b6a341734d5d62b32002d6de5d30327cccb1a2b4d08975bf8c2a3e0f8b1a4fe8b541b",
    "signer": "0x5Db8817A854307B6DC43bAC648d095ab03A71F75",
    "userId": "458682431"
  }
}