{
  "manageEntity": {
    "action": "Update",
    "entityId": "910062147",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3b978eccd4ead408ec3d2daa46b783cb15632408c7f595383ebda36c3b158ff6",
    "signature": "0xaf3df8777b82092cb7998dd6415afa37043c1b3190d4128a1a0a27258f1f340f6786fc3c21b2a1ff8684775b0ee0d9eea5d02ec51294fa9c1367fcc1eac091f91c",
    "signer": "0x90B2514a5947bA1E036212c91d845598F835eaAD",
    "userId": "910062147"
  }
}