{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xce538bd0e830b465dbaf3db209998d5a73c13f788bbd2a5961d11f8e74cadd96",
    "signature": "0x733634d8b01e5d6f496f80baf305aa6e7dbac567f73096711340ce88d8ab03b3413c954c2e4f25a854efdbbc00507e5ce37aaf549fdca57668f8042476086b9d1b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}