{
  "manageEntity": {
    "action": "Update",
    "entityId": "193758733",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xebff3d060e254f9fc3556ca589115faa2026d31b5279e8a3200e83869de058f6",
    "signature": "0x2e9303caf28ea111725c2bb9e9d3199cde1565650157fd13b653b5d9bf3ace6415f5c052765dc67e102d5cf952e2d1e141e10ea1f22face33436d7ab20df1efc1b",
    "signer": "0x07D88B6447585F78880146Aa4534A574447C9D3c",
    "userId": "193758733"
  }
}