{
  "manageEntity": {
    "action": "Update",
    "entityId": "479039338",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8ade5806430d12ad56cf73d76493ad998f41a311ca4d65dcc4ab31449eec75d9",
    "signature": "0xae3d6885dd9d7b77a271042a0d0c85524013a90f4c0a6554d7e8d9db77673ae449b0c5aba2f6d4ea6094915e213634e4e178a803ba1957419ee71f0c8e868bb91b",
    "signer": "0xDA5EF39662B4ef70B52C25F33b5637165C93DE3c",
    "userId": "479039338"
  }
}