{
  "manageEntity": {
    "action": "Save",
    "entityId": "2111142770",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbd62d567fc275e3b6e7c200001b32e2fa6282dba4c2d6103efa12efa5e964260",
    "signature": "0xc0cb3f6f79506018ba2650c99fe879aa8adb15ad53d9dc8db459864b7280a7e215b05f8a84d7fb65f696b0409e17724793270ee4c2df228cd5d9e29b15c0822c1c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}