{
"manageEntity": {
"action": "Save",
"entityId": "1581111995",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0x5f611f7cb0b1172fad8ad05edacfb2d43d47000dd886861eb9320d089770d7b0",
"signature": "0xac9193ea1e109aa7cc12ae36c61211023b8517fe743887a28359c2a1da125aaa7453356a9090b4db78cf6365367c71c9cae3c1046480c0951edde2e6f6a74bd21b",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}