{
  "manageEntity": {
    "action": "Save",
    "entityId": "1156551191",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7a985bfe67ae257444b65d24a06e2b6852d0606c408ed23a530ff341bcd1aaa8",
    "signature": "0x9b151b6460b89dd899d25521009b8725d92ed84a40ef1229907db5664c905d7422f48564bfb074b718941dbbac7d9af8fb8a904a897e3beb196d86d277e6152e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}