{
  "manageEntity": {
    "action": "Update",
    "entityId": "154798324",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x07865f82145838b7540a859b5722f7052d28d70780730640fcd382d5ad511573",
    "signature": "0xb0bec683e1a47ed2f97d4696ba9ce897b716a81f92736b561b21856dc80f4d2a64a3d4546e497b76c776e7a2c6b7e7fec17fdac45c1224374f7f8faccc868c001c",
    "signer": "0xDB0C3C937F5dAec855a051f9fDA3513b9FdB111c",
    "userId": "154798324"
  }
}