{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0x16000bfc8c1a008b1ea01fd3c049c357453cdeb1cf8245f97083903730dc5879",
    "signature": "0x03d18166826faaf6f3b2d120c924465c2ff4977061ed3343b6e2a8b07dd5fb666c45cedf231f316e3e1aecffdeb21dc4b054cd599a0b5d2a9b6a7c49182bc92c1b",
    "signer": "0xCbeD07e86835F78Aaa98F4139515996B2714e0f1",
    "userId": "973874643"
  }
}