Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '58f71c3dceaa620ecc4524c57b4bc2acb5ae3d50099beb955bdce7a055d4063f' 
  AND token = 'z8GrLTBA2N8ul7AeW5uGGkCpIhW4IHDQvOAsJjELgX4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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