{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143080",
    "entityType": "User",
    "nonce": "0x8dc56bfe5ce5c3150215711f611a5bd4a7c6f0a3d7e810935e9e65c78f26bd48",
    "signature": "0x0644e94c70dcfbfd94b5f63b422447ffbecacedec66d93795942a8b546a9d7e13c2c388000a66024152617d4325a9e5456ebfef0d721cb0cfc5893438a4065091c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}