{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "661267",
    "entityType": "User",
    "nonce": "0x4174a37dedeedf30e460aeedb9b6cbbf5c0e865dc37891693ae3828cd0fb260d",
    "signature": "0x54968a7c9ac53e73b57159fd5d2f5b42601354d4652585e9fd56aa6b5cfc794f1fe39d106f8582d97d8c61bec444787c328310aac9972d46f61981a5bf745f7e1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}