{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "733102958",
    "entityType": "User",
    "nonce": "0x4800a7d9c44a5d8e80c6f0a8591a6815d22ec0bc8907b436ec5a5b5bcee60497",
    "signature": "0x0e817f29b66320091c82baac7a764be43470bfaaac16fb906a67d4edf39a48b424f3cf84193f55cd25c4411adbf82473a725329b5e91626a7ff9fdbe490e05831c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}