{
  "manageEntity": {
    "action": "Update",
    "entityId": "858635686",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd6b9d79814af5a7a3e2cb41739b37e0b497e8354b7791399436effd6b1457004",
    "signature": "0xab40c644b43bedec73b9af74065b305b30c1404c975c6dced1b0bbf2ea61f93579544623d9a09588536755a2653161d59b687481d3e1fa4fa6d86be495307d3e1b",
    "signer": "0x88f32c3cEB2a2cFdA5D449ECe4cd51DF1D6c09D3",
    "userId": "858635686"
  }
}