Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '43d504734d328e2c848dad1ef1f158779d7f8c5492a3faec553f2695c45c5541' 
  AND token = 'BrpyvH2s0gaQKeP90iBDrZ42nTGSLWIwKxWc5v32Qiw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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