{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303867964",
    "entityType": "User",
    "nonce": "0x87f007b96b921734b1166c11da878b1861258023d04df3cdb5ca4e8891d1df2e",
    "signature": "0x6754d482e3fffdd86ef2e392f22d3f5e6bf7b99de161f29522b5c5cd30c02651448211a01fd574b19bbc8f03b3a4b9641d268f8dbe3e227be20454e5c42a3ae11c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}