{
  "manageEntity": {
    "action": "Update",
    "entityId": "59445957",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x45348afacc2872889976e3ed780b2a31a8e58f6e25e2ba380f1f4309fc30cd44",
    "signature": "0xe616319717f1c2656d74051cbf603c8e1281916c3721e3d0be00eec9bcce021d2de078d3415e4c5a994421a3f03f3947854d033b9cce1d12e6e5e41ebfe1b83a1b",
    "signer": "0x3D21fd437e65B00cA2BeC485a4e143b28572B434",
    "userId": "59445957"
  }
}