{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137582",
    "entityType": "User",
    "nonce": "0x911ad1324f7b6aaa3e7fc6a708aec1ad4c68d2e72de5c8a24d8d96e3a97a077e",
    "signature": "0xd18ad296d2b328f64a1909e69fd5e10365aec2d9e69848d11ec6cf5225b5b68944a772f1681b3685aa41444b468f1d27e892cc415b0f3f57cdba221c251a464f1c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}