{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd9eae4db7cafb55e2f8a671ae08996b1efea38f0002b54b7a4f4d1cf1696e292",
    "signature": "0x67edff705ac1402bcd75c8c2cfae4fe5bba118755d0743be4f31717bd75b20187d3f502706647bc61745cfbcd1e32664d628030239ac8296e44dc1787762052b1c",
    "signer": "0x2d9dE0031960aD6f53e402E622254d2AeBc7307D",
    "userId": "787599159"
  }
}