SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '965939be3bd8c3d7b4af2472780b5b70ef6af8825338ac670185e666c41629ff' 
  AND token = 'zbWk4nuyq7JLui7O2/LuVMFoXU8GzF6BSvtXFRO5VGQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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