{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995293503",
    "entityType": "User",
    "nonce": "0x75479b51f15e9ac2350da52568ebd7a5cd38fbfa1e536775b446d15022309313",
    "signature": "0x4fe97b81f5ff5eba09c04cf32c2dce15870b8890068b410ad85179269f77e8f57a17abaefe18fe5bde20df3f56260ac2eec1ebf1d8a168fcf6a7eb69638f79331c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}