Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cfa674eb6004b77702f7cace8ca6375de78d1284f88facc2d9d55515b104e69e' 
  AND token = 'BxAdd6vPsUNlczXGpp/B+L9bfGebjcGa0BSqgq7ENjY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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