{
  "manageEntity": {
    "action": "Update",
    "entityId": "992500735",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x696b91f1a9c862eb1debeb4c410acea58a9120c5ff0f2b0324b3b5773bb0731a",
    "signature": "0x094a38842c1e175a740d4b8ec1de98a97877d738ecfcbe8dc481c80bb09fe40d18b5bae7e1a2e48a85d098ae8c0f81fbf34df532d7c79fd49aabf390a21f337c1b",
    "signer": "0xFD8659E4715De55838a1954d2D0e1132BC5FBeCf",
    "userId": "992500735"
  }
}