{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584616263",
    "entityType": "User",
    "nonce": "0xb88b5d9e7e23664a7af6f9ac0a467b14f14c1eefd471b2461b08cf3b04ed5320",
    "signature": "0xa908432b5995d6b2b12fb2cb1516cf413535fdcdda5ad80934b5a4ca78de7efa0d022c9ac37097f7d30fdf33696ce3043773f2bc26e2dc98be88eebec4f3af301b",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}