{
  "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": "0xb82c682202b579169d72017245858bc5ca6dee540c06d960b919654ccdf323aa",
    "signature": "0x9b0d51ca3c8362f0063c6dec1d615c44ee3814ef510dd512d96697e677f000995eebae8dc3644fcce6349cb8ec329d038148220f2d60c257f90910629c21ee7d1c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}