Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '46080820613e9c4948d4c89d5d9827472d4e0fa6db00d11f1f2572597c8d23cc' 
  AND token = 'ib+EM83hbI2TkvHEZUCSKnjGeCW5Ypzf6IElkRv3tek=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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