{
"manageEntity": {
"action": "Save",
"entityId": "1444828633",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0x5184bf766c0977801380d09e90dbae4298ef7bb1dc15125bc759fac2e47ca57d",
"signature": "0x180729f45d04a80861a465ca082330a540385cb2364cb79da945c441146c44aa18854bf4c381a0ba2dbb4efc2295f0c8f28d6a23273bcb57f207bc0d7f68882d1c",
"signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
"userId": "989073793"
}
}