{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73513",
    "entityType": "User",
    "nonce": "0xc443de1be6270c89f6751cb0d9c62f863749b20a7c3a48f86a0191acf3e24879",
    "signature": "0xd0c00cd4e897873137edba6e1d4659e9386d40da8d7126671a9e50d4e72538cc489444bea0389f1a30071c95ef079c29bf619a8fcee9d9cdc7ce2c100c7e83fe1c",
    "signer": "0xcA2fC34A9E583F8E602b6FECA894286a1d17f1e2",
    "userId": "772779714"
  }
}