{
  "manageEntity": {
    "action": "Update",
    "entityId": "696978255",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6f12d33732d9ad2c95c91986b56c2d31d3b8ce4de08d36a200d6b9fa0e172f20",
    "signature": "0x63c6da6da95c296b8f051877414a36e46ae9ac987d2717b2b609348e35785f544c843df2ad954ccc1456dc0cefd2fc7fa20b1da7d1ff6cca5389720f70f43b921b",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}