{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302786",
    "entityType": "User",
    "nonce": "0x5dd2284f8bd8d0b08fdc41678528d033f87f528bfb0a20e42ff9a52e2587d68b",
    "signature": "0x476c52bd4fa573e5bdac61eb8484d2ace5a80661061a599391eede9d423599276b310acc819f48df633a622fea2707e8ba105ddb475efde48cdc35af9cdc46e91c",
    "signer": "0x7B8870Bb9a687d4cCe91A5Cdca9Dd733740FC73f",
    "userId": "84172863"
  }
}