{
  "manageEntity": {
    "action": "Update",
    "entityId": "920573113",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbe87c030bbdaf2eb3f074bcdbd082c4624f436da4e420a6548e8eb4709711996",
    "signature": "0x2dc1f37ef3db0f40984c29855d1e7eac2d44803e88dccb87e070dded3aec8d2415fd28f80f832d5fed9b3c467e02ef9fda719b8b2fa4223fefa53abcce63f3e01c",
    "signer": "0x9a823e89F23833ebA1E56815dFa76075018b62BC",
    "userId": "920573113"
  }
}