{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7aed6a9f214897ad178b8d817a69251a779f1c91beef07b25c620d9cfcc0f756",
    "signature": "0x752f7f3acc9fa34c9feb1f8902e09d5280e399f7386d1a95f38f4c90ffce20a5742f5244bc642900707706686c1e4ab3847ff5212f592f63c53b1c7c1805c80f1c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}