{
  "manageEntity": {
    "action": "Update",
    "entityId": "201682879",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x56154863fd2b321ab33c6207d735abcb65d5945579698903991e81e96400f3d4",
    "signature": "0xcc57c610ad218cdc0c1a0fa3d3d5281718a176c0c11372c6ee889816a675c9fa01ab5a9f8b14a2ecd31f02f92d521cb8136966b7184107f20270d8a752de3d741b",
    "signer": "0x87f67D51885f6829798B438ce72188F723f63679",
    "userId": "201682879"
  }
}