{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x721ba78b08551b19f7888902589b38e628560bc91d93d6ae5df53ee9f88603d7",
    "signature": "0x5ce62012f73bf2a1c9b9fe675cdbadc9d4c93bf3b85f52d6ce2e9e5dd5add95076b1de0fd973444178627277ecb347d8d84355ed7280c49021fa9094c90251fe1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}