{
  "manageEntity": {
    "action": "Update",
    "entityId": "481073098",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x39a99d09d7799327bebf92c1b9ba40b5498500038e5ca9c2bfe8172adfec4db2",
    "signature": "0x23e8a0ad408214026fb605474896585fd348476ee0d6a2e172aafc7d18f2909223a952c58c1e488d13970b157e8e6dee64faf69b0d08c4c4438d636b9196ed011c",
    "signer": "0x55835e6019b5eC353c0B4081FbEfC20c7d8832D5",
    "userId": "481073098"
  }
}