{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9bde4ee03c1f2989021776b4d3d7bf3229e0d2689d8d917381dfd7c728e3e119",
    "signature": "0xcc2aa47d551bd29dc3b800313c1a61b402af80ac7dbeb99bf206bbcb06bc172424f35142fea763886200e76fc60cf2b123fcd3ec6454930d144c773fab5290db1b",
    "signer": "0xAA8A6C09eEd2da304D27b3f500A714038B12Efa0",
    "userId": "264511257"
  }
}