{
  "manageEntity": {
    "action": "Update",
    "entityId": "235256666",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb594184d2a8d1e4d3a0d0dd26fc54c138381f7b360852f78a2c514c6ab369df5",
    "signature": "0x2b1b7a379fdb9c313e97d0d784986f32548a08e62c09fd507772c32e7d8f82620303c5fb432b867020e297d66ce3809d207d4d1d3df1a6eabff99a97517eb8551b",
    "signer": "0x1640Dba7CFb907fBEF6DBC6b56c742f791632486",
    "userId": "235256666"
  }
}