{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170315866",
    "entityType": "User",
    "nonce": "0x1b11957d3cdcad73ca0cb7fdd76d4f2ab5901b321bc24bb73fe35656e23e5cce",
    "signature": "0x2cb7735a66b57693bc87ad5a519e85c0fccd94fb9a4e26c670cb9590862e1fba1b42464e159c07fefc43be536cee8aecac5374b5054bad209559b763d198bc451c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}