Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3d572d426d084cb9c45399a1dc6107fc166c3363afb4382d2823402a9eb6d25c' 
  AND token = 'vsFkzrakvh/MnyQCNYbwairahWz10DIK+JTIoRGzsKM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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