Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2131268e9040e8154de15d0252d2dc11891c6c254ca0d661e42ea38c9ae52300' 
  AND token = 'm6Jp9xvWFne8QWZNdDfGoW9BKF7ApHSCAXbJRG5iU2E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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