{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x64d7b79f0974a5809839ad41cf669322f68a9b379f6c24a7908f4a9acd15218c",
    "signature": "0x457a59f7561a4f7fb237275d14d7154dfaf0c4f4b0526ba49b5d09401a9268c94e4ad99249c39fd359aa4bd4e28ddb07f8062021ca33759f7752efdca000226d1c",
    "signer": "0xe459D401C9C3231D874806BD7452788f3a23A4BD",
    "userId": "739997749"
  }
}