{
  "manageEntity": {
    "action": "Update",
    "entityId": "506671051",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x52fcbbe1ac1649f1128da0a047887e67f74c5fe54cc3df8f35e30f845a38e877",
    "signature": "0xeb3353f2712553d5bc77ee07bcf7b53c61f12f5ff1d9aceff22e1798998213d86623682006408fa9c8e890d8ce80bbffe5a39dbfde7d363935e60daba5cae0561b",
    "signer": "0x7b67b05bA0A04e49662cf931d72cCAE0839D71C2",
    "userId": "506671051"
  }
}