{
  "manageEntity": {
    "action": "Update",
    "entityId": "473569856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x14fab3c269ae78b090f092816d34844876921a24ba09e2b69ae3207ef8d1004d",
    "signature": "0xda5b515d14b30ee919d155dbdb3ce50320b3654b657d597ccd654ae33b0f468f63d9479471eb948717811324d0f1b1d056cf0c674e17d740872d7e9430cf498f1c",
    "signer": "0x4af4E9B1aFBc8e3a6f2fAB9EC006D58066ca6fD6",
    "userId": "473569856"
  }
}