{
  "manageEntity": {
    "action": "Update",
    "entityId": "971524822",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdff9bc6a7db186104caa99ea36f8b5d27026cc925f65ed741fcb29f4adfa1b21",
    "signature": "0x4ece89d84a4cbfe918ea69f3b29eb994b21694dd4f27ff3e3edb2096b9fb288116be97cebd932dc0729d3922f2950f1130b7224daeeef2477962fd3f2f0134021b",
    "signer": "0x88D453C6A497F83c176bCE8F25e6F00ae8510cA1",
    "userId": "971524822"
  }
}