{
  "manageEntity": {
    "action": "Update",
    "entityId": "327576279",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x432fb81c70d7debec184e2696e574df8373c19d69873e97abfa86dba1d624750",
    "signature": "0xdcface6d594c7aca025822145f1d3835bc850cddd26bc61ed847a7e3b39b0bb6212e45263637981f469afd765708c4e6aa7a3506ecf988cbe12ad0bc6f5aec041b",
    "signer": "0x40BfC75ec48613C1dB29f34F153f5e1c82E8D833",
    "userId": "327576279"
  }
}