Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3d7efc368cdf7577d5c4fde7cde6d400a9637976e7be8ac12eee6395b3ff596e' 
  AND token = 'izukEVlKiUSr9CX7MJnMa7HWy8Yy2GlUe6jtDSAhCfM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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