{
  "manageEntity": {
    "action": "Update",
    "entityId": "902919203",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x89707177158c683ad133cd0939a512151e5221c2fab56948dea1a38156f3bce2",
    "signature": "0x99a1086cbb9fc330858882f4b239091737700f53792d939f2ae8237a37e3e6b27fa18341f922cecf31a09c1208032658f62c3def238827d6595bccd862c76b0f1b",
    "signer": "0x0B8Ee9C69e97Fc455bE89f6992ABd35789739011",
    "userId": "902919203"
  }
}