{
  "manageEntity": {
    "action": "Update",
    "entityId": "859997783",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8a9c69d29e4a2d5ea20ad24b3e0d0164496e5368673b20c5500d8b7ed6c55f4a",
    "signature": "0x36380fbc9a757c791fe93edc55027ac91d313108865b4cd50be29f9696fc05eb59188b0cfca4e294d6f49ba373fa77543433403173da5e50295c9cdcac097ed51c",
    "signer": "0x3bDd57f19A84B53BbAbB60892038153cD50Fd5B9",
    "userId": "859997783"
  }
}