{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571586821",
    "entityType": "User",
    "nonce": "0xda3894def687eee90019bf225bdadfa9e3371d2c7097c47be7da5b993b27d68d",
    "signature": "0x0b4970449f1ba4ad7c6f38ffd0b84c8975ce19c3086a18875350c1e3a270908d46d4d82c7b0797c64d0a6fb99e15dfda22116940db99bcba55c2f76ff68baa571c",
    "signer": "0x22Fc85b6fce8CE12f05a05dF6894b4140b7e8bC7",
    "userId": "373394983"
  }
}