{
  "manageEntity": {
    "action": "Update",
    "entityId": "870351659",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2316932fd363763b26067a33da3ac98c77b3d615902890e4766feaf9c422e39a",
    "signature": "0x7836b162e151440889d0a5be641612876256f785642aadcf1864b1afa025c4974eaf30b6509d85a3827f7e52cc1596649277324cbf58d9d8d46c784b44b971ec1c",
    "signer": "0x9DC85A53726bD5aA08B975Fa1Ba2B3882a148aff",
    "userId": "870351659"
  }
}