{
  "manageEntity": {
    "action": "Update",
    "entityId": "661974138",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2a142ecfa6b024aa92d9a1c38ce41df20297e0e78048e14a054a5cc2600b1f66",
    "signature": "0x12dfb4f82df2f28d63d2a3e3194738d941a9824a55f5f6447ca21de7ba47d0fc49157b356f55fd57afc775fe793abc27ea09f8deb56a39eab3d8d150da9ad1121b",
    "signer": "0xF11eB99D9db426C0c54890863a2b7B93F4C29d37",
    "userId": "661974138"
  }
}