{
  "manageEntity": {
    "action": "Update",
    "entityId": "98088512",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd909924cde8012c86a33ec1b39972bc3f18140af91fb6616978e96949a37cce2",
    "signature": "0x50d847cd16c93f428c418b5c751e129690a935be902ec9de44c4a546b37558d0209fcd992699eb8bda0e5dce26c2a3788ec59336478fac66a01c6e4b5c4bdcc91b",
    "signer": "0x556D15a5c7676f637104Fb4F811c98D46bad6AAF",
    "userId": "98088512"
  }
}