{
  "manageEntity": {
    "action": "Update",
    "entityId": "295152374",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0d72fbefdeecc396d69d70095d2708a901b2df3c6d311bdc2033030639755c99",
    "signature": "0x4341ab9b84e3262dd2a1155e1878bd469329c73f8c245585a4e317edda683d357e788b2f65e9a4930337d53ddffe94ba91e0c2d277a1f9cf578f70f4a86b6c481b",
    "signer": "0x39d96253223430938194b674B1032bdF3e3faEa4",
    "userId": "295152374"
  }
}