{
  "manageEntity": {
    "action": "Update",
    "entityId": "617907933",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb5edce0e79203b77fb95872e8044195eed5d87b8cff40b292f191031d723996d",
    "signature": "0xe286eb831eb44b70be0d27e9d136100ee33c285243e4ce49e4f0a60847d6d2fb6bd7a98172fd6a71b40e31892df6d06fb7b38bacb94ac1a0e3522fa51a4964101c",
    "signer": "0x54B23B3C3bE81587A84Daac74c9AB404066e16E2",
    "userId": "617907933"
  }
}