Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ba3ee4eff963475ed50143511949c42ab42995749146290a5f2bf8d6a6b8525c' 
  AND token = 'q3Gozzo3fFxUpBo5bqtGMslAiBtKm3WLFIXweed8YZk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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