{
  "manageEntity": {
    "action": "Save",
    "entityId": "78518",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7a927d7e87df7123bd821129d5a5c4c3b7fdac68e06c76a4f916cc8d2ecb7b9e",
    "signature": "0x059f699a394059ae98e8b15711781f0b2dc9b7793471c3df3f1bbb7e48475acc69b726203c55bde86f56a4b06f4b5cd93872bd2aa93f6d529afeb097aa306fb61b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}