{
"manageEntity": {
"action": "Save",
"entityId": "409002857",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0x6e288c1de57c5cf64f43b78ffe8f8e7ff2b81a4c5ae00eb51b26efe2223eb671",
"signature": "0xdb01d7f713dd3aa33e1ec7b4815b90fe1ab852ba92da6c2851e3caca5fb17c5f38077fe07a70f8e7635b8573d4e29cd5a857404ce5fc41c0b0f29410a4f225dd1b",
"signer": "0xD967b68365738013c9197659aAb46EB73a488080",
"userId": "488430169"
}
}