{
  "manageEntity": {
    "action": "Update",
    "entityId": "279965022",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x14034cc206710eb137cb4e590b9cdd38af43f71aafd7ffd61c553e1422df191b",
    "signature": "0xc54764c18854dcaa640c216474d56307c40910e2929c640f813f481a845f274d1ac1201be089d3522b3407f0987760981f28c703d2aa55ac091dc625c9b3fbd11b",
    "signer": "0xb8CB2Cc2649E307376d816E8c0a3eb9377f09938",
    "userId": "279965022"
  }
}