Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0a1e26dea93b5193eacabca51356e32df4eb43217d7324152248fac32aed87c0' 
  AND token = 'g/EatdzEJ3/STE2Ap2z9Mzgx++CcDR7KAPkH5QchbeA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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