{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "349283310",
    "entityType": "User",
    "nonce": "0x3437bc44e8c06eacf12e11cc62323c5d40127fef7efeca4edf55340f4bbc8f12",
    "signature": "0x9ffd53f2a2d7410aa705113af509f2208b21dc8284c2f8ce2c9d55ce66711d683e12618451a53493ccbb7b17456743bedef9ff61088b4bdba0fa311233c049641b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}