Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ff9d24fe7b649f6abf52eaec0755b599bfb404c506a36394dfd9be941d6a2d6a' 
  AND token = 'AZ+MS4t7cAGQ0vEBkWMWDWX0frgDDcoqZPJvWF/xc6c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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