{
  "manageEntity": {
    "action": "Update",
    "entityId": "418640316",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa8c79bdf4c62f8dc8c6e4b9916a560bd1b95e6cd997cee40a4de11af2769cae9",
    "signature": "0xe502395f40137c067307eb3a2e09e8321266883e06cbfe4a5160a7d37faef68f5d7ea88b6480b7d6250ad3956edec9303ab68dbb4939ad075743c4a411f0ff831b",
    "signer": "0x05bD373Ed6917f917666d658fb0DdE63a193f9E0",
    "userId": "418640316"
  }
}