{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987199883",
    "entityType": "User",
    "nonce": "0xf052867b2e0a10dc92a6930853729f7541868abf767cc7775b48d524a52d1e59",
    "signature": "0x7b8d9a5a9894da3c8dacf24225aec182b28c666b92753d11867a7fcd7141d96a64c56384462bf3cc6966da15a01e5d5112f08518e6c85d72eeeb90b7c32cb0161c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}