{
  "manageEntity": {
    "action": "Update",
    "entityId": "47957710",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajak7tjwfhb65cmpvxr2beg2zzy7ro5yfod45ctdbv3skqixurwaa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":706800800}]}}}",
    "nonce": "0xd450ebd6c4ddbf3056bb57438fd15459945453fdfa16fe8b9a2beddbabe1dbd8",
    "signature": "0xf79516f2e621257f82d546b9dd29aec5fbd5553afbb1181441b79abd746bbb6a0f83cbe4d971abc5291e1716da517da2ce65bce76f117a8746dfaa36075326cd1b",
    "signer": "0x2D81e23538E92940893ef728A5b6af00F3a1e478",
    "userId": "47957710"
  }
}