{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66185",
    "entityType": "User",
    "nonce": "0x58cb0a52d1a0f956c1ba9cf2292b843dd7a93b8877da52090536ffbb8cac4587",
    "signature": "0x7f97eaa2aa07ae491d98ed352a26ef0d69b6cfd2c29587b6b7e953a7aa4c3f754aebd20f2cc818bcd32fdb9bb0a632632c859d7d7fa2426d62c8fde5d3ea365a1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}