{
  "manageEntity": {
    "action": "Update",
    "entityId": "154085595",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd61760bec15643e729e5df7f2550fd150866662e0ac8d4ee28198a437eac1218",
    "signature": "0xadc81e3e3a3bfee2dafcdc18ed5f2a2cc4ffb44efc23d34c1094b20d4593ec52223626e65dc90158a1f4fecffe87f9a09d7ba6e313f249c31d9c85efd063bb611c",
    "signer": "0x5b8BFea922d3E94c01D9b58040d1Cb4E8BE244EF",
    "userId": "154085595"
  }
}