{
  "manageEntity": {
    "action": "Update",
    "entityId": "246081773",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfc6ca451fbc34a06cf47cbd2f2c1af03ddd00493defc2019be5fe75ae4a2a3d5",
    "signature": "0x6b8f3a6d629456cf7f59eb21e372feb29ed183d40cab5dd828be1092f75902a3141996b2e87525b67f977cfaf309cdab27e2549a386368fb300307673b2addf51c",
    "signer": "0xB809F8bc7a0aa1aE019b311c6E1caA8c46aF672C",
    "userId": "246081773"
  }
}