{
  "manageEntity": {
    "action": "Update",
    "entityId": "602512437",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5c55e1b1db2c4656f358a59ccde59b7109a50b634555b9828af094cd92b7bb2d",
    "signature": "0xc2c2154925de454474d38e848cb485948fb23a1fbd5dada4a43cedca29acbeef6dc5b94af95322595a391971b5cf39ae4df15827693b1040844f6c537d45684d1c",
    "signer": "0xA84D5010353EF6fE613cbE7b8ED85880A962cA97",
    "userId": "602512437"
  }
}