{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0xc767639a9c7f5ecd534456f0eceefb253bf8599942acf8590449caf63e8551fe",
    "signature": "0x17b822462b50100911597560267eff5fd0370dc0e5b78c93c84ebca4a56298840ba035dc092298bb0ab435a5618226898f6dd05ba03a92f8bccef3a3ccc35b7f1c",
    "signer": "0xa2ecEAAb74B2f9a94c5C470449fd6E64c121cB7F",
    "userId": "743206207"
  }
}