{
  "manageEntity": {
    "action": "Update",
    "entityId": "982437791",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb5e4369426430773a3750f8262d52b63e4d2897a9427f43ff7e09418cab432ec",
    "signature": "0xcb83ec5a933a9aa09743bcc343b31fe5a30c0cdfb6825cc7e1ace028882da46716f8d7856d41c791bfd9df3df6715101c11896a840da35ec52758eed9c2e51141b",
    "signer": "0x518Aa35ECf10349c3aFef8B26468cc3B58816Ae3",
    "userId": "982437791"
  }
}