{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "650714154",
    "entityType": "User",
    "nonce": "0x7e8640d4b8a89de1d9df5e104c0f729b4227c44f8f164fa2ab993b0f900c1b36",
    "signature": "0x58d5f7c79d09f97d29f29813e0e32969f26ad1791bd5a72e08dbeda950c6848c3c08819c4914efd39e48b75cbcb429cedfb29bffa49ba847c7678e483ef61c941c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}