Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05eb2bd0522a6cd2c1468ce4af3f30f48eee5170de45f4c3c077c39fc100f7bb' 
  AND token = 'nz7JKeRLGyF4inkXMmydd/lFtiObPpIpXIsIoYwM51c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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