{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "843421708",
    "entityType": "User",
    "nonce": "0x4849d5ae39d652fe07bfb9704b0ba1caef09aa046a897181b48475e7e88f7ea0",
    "signature": "0x36c47fcfcb54f4d0577f3c58c8083d3e77d25f99a2bb7b5afa22075d8225963647e87724f0f554e0c7f26f9204ac7966563709a8b9ffced5654162b9c5ce96ad1b",
    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}