{
  "manageEntity": {
    "action": "Update",
    "entityId": "186476415",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdffcecb47a3f78d17f7f2aa6d5b2883eb58ec1723cd02c76697292e42315969b",
    "signature": "0x005e8da2ecd187bdc50d473e667c9b8c04aa52107212c173583aa1d5450ddc96404db0fd96100e3eb91d2c5a16ee0f381d32c47793b32e46672da5ec90a47a071c",
    "signer": "0xcD4F1186307274c0CEe6f7B3839C6E04b1378169",
    "userId": "186476415"
  }
}