{
  "manageEntity": {
    "action": "Update",
    "entityId": "55263861",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf357e99bdb5b761e5a81fc4e9526a4f3c7584bd121ce2919f788c0f414a445ee",
    "signature": "0xe9bc7707a29aa00d3d993a9a0d91a4ae36a7fa7a8f382117de02740724a3aa3855818777995ed8e624489d8d97f8428b4d0f76a91a01fa03ff8cfe2ea1e768e01c",
    "signer": "0x8299Bf72dBe9fB3Fb53d425F20Df8371fEa617E6",
    "userId": "55263861"
  }
}