{
  "manageEntity": {
    "action": "Update",
    "entityId": "369736730",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x87d9f9d96d1a8abde1ca0ecb59023957b2edac671e410a09660e7bd870bac639",
    "signature": "0x5d967a095ae02bfcbb5e679e7765f7d171ba4222cacbc7f6bb61dd331db74cbb04afaf18b7b8563aeefcc37042a3254347cf2f236437c82aecc1b920073281301b",
    "signer": "0x4Fc1bdb3E02Fc0abaaE135c7389328b81538E857",
    "userId": "369736730"
  }
}