Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fd9d4b67afa8a806d1ca391a0202c3ad25d16b84641a4b6a90a16944f314b212' 
  AND token = '6XhJXhdSnt7lc44pcpdmiVSv7gzjTaK2hnKxUPWoCL8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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