{
  "manageEntity": {
    "action": "Update",
    "entityId": "40456963",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe024349efe21f22d02a6d0aad8c910fe2c472e28ecdc2f76a1e8df95f6e127d1",
    "signature": "0xe7ac4a34529e07dbde0ea7ba14bb2e279bac9c7616ee71a17108c0b78b0061ac7ef3df2b8d441bdc7880e24aca3e72540e43683f69f2e45ed25d7b8fcb88fb921b",
    "signer": "0xc03B0DC91D4dd69BB843F957bAe8D3B7aA1317EB",
    "userId": "40456963"
  }
}