{
  "manageEntity": {
    "action": "Update",
    "entityId": "439116984",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xacd40ba2ccebc78dd46f329e2d128a82e9af45d900bb465aefcc49325fb38d35",
    "signature": "0x8a4f10390c71a72af53ba7777730d8dd78f7c676dc8a3c16129b9427e43a005b140a164da36d275d9012a935ab85652d1a3db0a4f3e08f85044fd5a2ea7f129e1b",
    "signer": "0x713F2e5B0EB36E8f4406d30664f8b9fA676795d1",
    "userId": "439116984"
  }
}