{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xec2da2c3195d2827e291e61bbb6da065661fae040fc2093f4e08eefbcd41a368",
    "signature": "0x858ea182072e5b81b1976b0f8ab91b0cf840c97cc3ea0e703fff1c51b7a942262521cbe74fdf29a870658c3cf2af6a858166bac955c33b67a8ea52f9b14592d31c",
    "signer": "0x5b39635D4af7378EB9F098eAB55C0f9f37e35B3a",
    "userId": "353032"
  }
}