{
  "manageEntity": {
    "action": "Update",
    "entityId": "705528120",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierauito46ng76jnwyixaemnpn3kabwq2o4jtepp5d6qf6zrsevbx3za\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":350885056},{\"type\":\"playlist\",\"playlist_id\":1381501443}]}}}",
    "nonce": "0x1dfee6eabe85f9aa5506bfa8707744bfe46f9c74da6f619d2081ee2197b9b1f0",
    "signature": "0x76b6c8e3e43ec21a04650a5b6573fc2ad6cfbffc65a1d6f42b4317c452ed87856d147e719b0b75974a43cd5600b80fed4d7f1bdf7b67fc092c17909a34f685931c",
    "signer": "0xF1ab19b0586eA77069bD2B9B6CD74C3fAE6fa968",
    "userId": "705528120"
  }
}