{
  "manageEntity": {
    "action": "Update",
    "entityId": "156853366",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5e5cdc41016f4d868c4a19d61c2af529f49eece6cdb1b103284b8ef1fd2b2704",
    "signature": "0x14885f6a817caa0377ffffa8f6b680d5fd4523b1122191d660d209153f1faff97b3698a9abe1f2b123f463aa14e52a2e2e414125e0ba2e7683b0fe5aac766a471c",
    "signer": "0x061aE9e3a2e494197bD6f85A7C83165FA5177046",
    "userId": "156853366"
  }
}