{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65271",
    "entityType": "User",
    "nonce": "0x1f7756f5600bfe58f2e8466de7a2e7ebb0906801a906135bf1da51bc5137bc28",
    "signature": "0x7dd26480bc37ecd86bd2fe5e62319d268916a3b381553d7ccc7fc3af46f4cf5e4a425d649bac9f51cad76df3808eec4a4ef031aa1df9702361e05c74e49d85b71c",
    "signer": "0xFEa2c41d314209186e519b7539c0FcBDa1F9f00C",
    "userId": "51657002"
  }
}