Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'adca337483a6b46f4a2520da6d709ca1acfb6cadd75fdd3534e79927f69e6f8f' 
  AND token = 'aO95B40vITp3nu2F07XuQaJZkHnIbH0x8Dg7+3t40mk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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