Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '55ac593c0f59790e2d67e525206c0ff071c9ff4150afc6b7ab50543c8cd213ed' 
  AND token = 'Q7iahUWirB51CPsogucI7+4hy/Daa0ru/uuIjP69hmc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00195

JSON explain

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