Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '128415a0258d4c861abc489b4ab773cc7ae4e6ac7de7853b187aa948f2ee983d' 
  AND token = 'Edkfd8QX8j+6j89A0qMd4x2iH6aicXujM68qw+HD71Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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