{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50dda6fbae2bbb91f8b892a240b6a0d6282f72be64f2524d156b12a7417353b3",
    "signature": "0xec881c331011e44ac893641f83f54c796b1b65092c7a3a74c2aef14fcd2118823a5977e87a3e09e37b3f6c2d46897403ca7fbfe9b48a8e62b76b2153ec982cbf1c",
    "signer": "0xcc786CcC436a62716dA9Bce318d278C27d31e9A1",
    "userId": "478300668"
  }
}