{
  "manageEntity": {
    "action": "Save",
    "entityId": "1096944220",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9e4b4333e0af2f001f60a887757cb24d974c744518968a15dc801bf2a717a552",
    "signature": "0xcbf360295239e4123bb42fbac7db2e074f3ea30a93401a3bd66539be4014430a4e49e5c0ea60efc0e20ac45e5741f0b95cdc9d6e143693b9f2213439eeea184a1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}