Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ad227ec54aee120e6f6df2c4b1b2dea6417057a02895459524877a3026819be4' 
  AND token = 'uGMm0uMjkzgrV/tuNBFtKcCGs9qA0zVAlCNc6c/PqCE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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