Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2d6aeb1fd0f84ad865828bd70d94f053f6ac17377294cf8d542a69b991526aef' 
  AND token = 'OM0Gp8r4L6t0/lbJK6DCljhfb2O/U8OKSDvOD/9gCis=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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