{
  "manageEntity": {
    "action": "Update",
    "entityId": "718980832",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb7f321e9cd5d846271426b7088a00b408affb35ad1b4087effecaf20812ea4bc",
    "signature": "0x499b408afab6646808e2715eec8ad4b95ab949df017f8f26dc10b2dcd16e21a969d8433d8c8583c773f9d9d57e246be619b394bf8e6958524f759310f3d54faa1b",
    "signer": "0x5Aff920Ac250359b44846F8c1CB387024f6EF410",
    "userId": "718980832"
  }
}