Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b232db352d978bc111ffdc4a635223a813f094c4aa44c3e00e7b4e872dbb980e' 
  AND token = 'QZz0CwzANchL/pE8Ud7Y7pdtmR546QOdRsci27gg4Bs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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