Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8f525d74441ac3356520c955496ba05328739969ebbeec9cac70491b32457ef6' 
  AND token = 'zmgnFpxH2RlOAckCXObvm9TBEu/fFz9N2UhBiyitMsg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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