{
  "manageEntity": {
    "action": "Save",
    "entityId": "1262709230",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdb38c5cf17e5afd4708d9160eb03bb2b078f34ed5a70f82e77dc29fe6213119f",
    "signature": "0x4c1426061e81d46aae53d57a25615b8c13c59136810e6e4cb99c3afb0ccca0844eee7cfe721ef1c32953fcdef260310672edd3fb74202585670bf945d83dcbe31b",
    "signer": "0x48997477d821e30d3Fa835d1Ee7809B3253Cb100",
    "userId": "75085"
  }
}