{
  "manageEntity": {
    "action": "Update",
    "entityId": "18614581",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xba718a21a34d45d8d1c8b7b2830810afb38c1359d3198d7363e009556fdce956",
    "signature": "0xc7868b4a8290b98d18f71d93c88382a5a2e15be9c0926dcc9c26036dc7af472808a5d727cc9adbbf234deb7d43ca50319c2273c7946da958e11fea747f8a76991c",
    "signer": "0x79C5861F17B41C00EbB1b267375f5D2d637c9160",
    "userId": "18614581"
  }
}