{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54277",
    "entityType": "User",
    "nonce": "0x89cf95b85af77850193f6ae9d2a3b3265485896dbfaa1f7fc0be5efd8110ac35",
    "signature": "0x4ec290bffe53d29996b7c2c77c01b8e7cd88e43a5e15104f1e2d1a038a74109847ef7c05174788bacd7ae1196b22bdf9f5970df64168b06af1226e84c1bede571b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}