{
  "manageEntity": {
    "action": "Update",
    "entityId": "40456963",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xee336e7fd8d26c48319c165273d539c4d1ad20ff941316b8075f66a5e673e2b2",
    "signature": "0xe5a126d29a86386617c5353421dd9673267ca42b9191009c0a11bac9de6d9d8f3b02275b065cd85ae12413f164c8c92b9c6cdd129d15647e012c4643f35389c61b",
    "signer": "0xc03B0DC91D4dd69BB843F957bAe8D3B7aA1317EB",
    "userId": "40456963"
  }
}