Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'aa0264507b2c5b5497f302d726d5b4e10cb973bdca2750543488921ab2e3f1a9' 
  AND token = '0lF0P06uvoW7X2Vo5ePlHMnrGLcZ7HtSW73sdjR5I8Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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