{
  "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": "0x4fd4d0d4a277992e62ea4c575276a3231e033d68f487ce0b0e50fceec1473e52",
    "signature": "0xebeffc5e0a320036a3d2fca2ee09d9c8e4646f4a0a8d7722d711c917be7745d46e9ec6551fc07c1343ab95d489a7bb070ca7f91cc08633d77afe46b6466ee30f1b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}