{
  "manageEntity": {
    "action": "Update",
    "entityId": "980941",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierapffx2cgk3htoh2wkb5tbuyv7hnywl35scxyinkxznicyoqp67o4q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1683845443},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":53481},{\"type\":\"playlist\",\"playlist_id\":142975}]}}}",
    "nonce": "0x3d7c406347cf93b7bc41c49bbe0a583465720fee4c5fae48a7bb793e76576bbf",
    "signature": "0xf87adbfb3a761d43feccc40009d5d4c1166822cfd3a0918869630daf79fa27ff5bfc9a44d7c2f1c22e5401cba0927bd4349259f05fe2974804db75cf447f1c961b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}