Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '03c636e1a4a7176f2a0b7c32a188337536b8bc0839ef192afec1597cf09355c9' 
  AND token = 'pxCE765Gc7hCsR/jb/M4u3P1W8aYsqB0aAKk3o9eArE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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