{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "23428",
    "entityType": "User",
    "nonce": "0x4dcc20084c7f749a31251b5865c403dc595289cfa8bc4fb6d92ff8ebaf6e8a5e",
    "signature": "0x7e5d553244fde30dbc4d1ac7ed078c080132fbe94bb4fe689d9add6c35d54410058a23c5e913915551ea3c9998c09ff47d95772b79e75be9cada2dbd5cacf9bf1b",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}