{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0x2e33acaf2951b0e1e5b1869200fed47a98a85c24bc46eb6fd76984fc2da9bb17",
    "signature": "0xb8e2f050b63e01d4979aa0ac26933c78347c48127c514d9992281515473f1ee40e37695776a5355dac219bf222ab99ea6a7afadbc371ae81def7f2a0a7718a0b1c",
    "signer": "0xFE17Fe2677AF57d35AbC9CeafeA4FF91C4542293",
    "userId": "934065758"
  }
}