{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x0b0055e6cfb470670ba7fca95d4dd4395cc30289cd1c67c832cf5815261b7691",
    "signature": "0x30a9948bd3baf56de6d22cbc7ffdd9b19c337d969ddf250612c5ddbf8e2478781e1139e19361e0fcc438ca99ce18b8f55f1626c7aa241efe866a47842d94e0d21c",
    "signer": "0xc2c6810DEdf2603EDe939aA892eB628B2D743906",
    "userId": "958345764"
  }
}