{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x1f7d577fd96a526f89622dcf17c430096629fa66b5eaec6b980b50c1712ea06c",
    "signature": "0xa22b31bd6d5e1e7acb4b09f6c86b3916f6369df1625e0952fc581f3f5dcd42f23230003193f1a35579ba035779b736680c35551a1a514e933e92b72a1f2e83361b",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}