{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf65798d1be4794d710ea398606f1060f69d7c1015157e48c1255f6223ab57a9e",
    "signature": "0x1a819e642cb86434316a31f4c4f61e633f4c21ababb89a75628a3945246f7ea632b71f71db8339dc8479c2257ed421c8980facc34b8246b7864621f69aff4f2a1b",
    "signer": "0x2eA9910225b42325141E07393dcb8EcD23cFE476",
    "userId": "583935849"
  }
}