Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '49ebee53d46924b914ece06cdddc544c6be79da187c6146af9667ac35b878120' 
  AND token = 'e3Ma83tdNxd5AT288IRsiC04TvDW88tj7kRouf5R3k8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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