{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x40599c54cc93024a134ac8bfc2d22e90d55207e7ee2ae20b76884d9b7bb49186",
    "signature": "0xcf8bbadcff3978419a342bcf423a755d1f29b21ca51908c291f752124514bc75342becdf8fec97b30e48202e2c6b1aae4f1cfbc5a8cb64c7943329e16cf22d3d1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}