{
  "manageEntity": {
    "action": "Update",
    "entityId": "52328655",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7448fe81e05a2a81aaf693c693241b4dc3ba97634be7a142774afb0ce21b3bed",
    "signature": "0x5244e72a9d5eab19e29739f30c9537aa30dcc68692690ad183b1f64f1758c63f1e5e15989604fb7c13301314774a97c5619557c3ec73f34106b0dd33e758ad4e1b",
    "signer": "0x1eE9054C1Fbd103C220810Af04980227e57d33E3",
    "userId": "52328655"
  }
}