Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2516929455e85ebf385548732e1b87f8bc051841d978fce478e74cb6f9e33ee0' 
  AND token = 'eEp8KUrn1xxi8catcujYf4209y2TecXX+/Q+3ws9s6I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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