{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "289349",
    "entityType": "User",
    "nonce": "0xc91152bd3aa790d1aa073d4c7337cb07782021b59230d606f5981b4b04ed91d3",
    "signature": "0x54baf2238e8d48e240347eecc2899c92a59eae638caa8df6643239f0980bc2f429df0a934de89f09abf732a253404d9d488be681d0fab2ab98a9d764e85a519d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}