Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '024f6fc707e90b0f99fe878d14a92bc03a013d6ad04e66543f607ab63d006f38' 
  AND token = 'jmccMhJeL8CrL1s9XQmeC0KTDRtZ6jXrszkYYZ5szm8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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