{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59528",
    "entityType": "User",
    "nonce": "0xe602e15cb1ac7311339c90baaa8790e31dc2eaea14502cdc29fd290a20dce611",
    "signature": "0x5b3dbacb1e19be51eea6fbd7ddfbd1d9edcf92379aa1d0f94fc145d2ace9cb2646bf04b753a145a96d22c09c3211a93231e7cdcdb84dd57e0e97a0c80a17ba7a1b",
    "signer": "0x43f0B8D1d2f9D2a154b9028969a81FF05029c7DF",
    "userId": "246212311"
  }
}