{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x074329f776c2eac32c27a294da91384583bb659894f31523ee026d7bbf077b52",
    "signature": "0x1631b58f16e5b878059b172952ff8df961f97237d0fbe4b12530e63e60c8269b2be543efed52d9ef2374bba9b6c597da1ef932c1c6f1e76f1256ec3adb7e109a1c",
    "signer": "0x2f306C8e90c947e1707fD157CFeB4dd73b522D90",
    "userId": "775721065"
  }
}