{
  "manageEntity": {
    "action": "Save",
    "entityId": "1911562749",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x14fb38b4f4952e99827d73b10399cab51592b28ef127dac33f8d23c5056e829f",
    "signature": "0x6078436aff11f96d5a24f892f825b361445e3de5f2509a6b1efbeb4f02e845fc6d591b4b20ffe48dc811e6a3bae1cbf16d796a151a0fb3d1141f7ad686412f9b1b",
    "signer": "0x635a32c502d056dd6e3f4aC1eb15Fb0d90a88171",
    "userId": "1640466"
  }
}