{
  "manageEntity": {
    "action": "Update",
    "entityId": "843461501",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5f7a81b48d36751929db758a39e575eb6f0347935373b453a84425cabe723395",
    "signature": "0x285f8f809d3a2754ff7522972d538bc614663040e662c623e3a4f01047526e664b6b20a8ea70a9c3ce1786722e573a90555408d924e1fdb69da560a34e5353661b",
    "signer": "0x7cB8007132bE8D178d23bFb20646AE22Df595FC2",
    "userId": "843461501"
  }
}