Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd0480cfaa5bf5e266a5d1f9b84032c58f6b01439bbe96341d44c2aef3e958f07' 
  AND token = 'qBrlolWe+p2kniTHG0NJPOY/kkiRO+4zJFaOL5G5Gzw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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