{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61978",
    "entityType": "User",
    "nonce": "0xa30995ee6c3f53f0daed117f1232a4a57059ff344175b2a3a4eadf199c25db0d",
    "signature": "0xa4d7cf2b15bf4524a5d25dce32f76f96988173863d39a332b4e4dd7678efd2ee3ca40755f972039c19886362d447be090b475ee0322ab8f740aff3c68cb14def1c",
    "signer": "0x8DB8e7DA8730AB9bCdFaF0e8b123fC1A631c104a",
    "userId": "668521286"
  }
}