Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea32aeb29edd1f9947f767cb4daa262449ff6cf4f9585a59324e892233bf1d02' 
  AND token = 'e8lkNP0KTiDRm3kuLCoOEKDM4Ye4QR617AKzT7WbR4c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}