{
  "manageEntity": {
    "action": "Update",
    "entityId": "907085528",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcade4678fa4473300a3147b2b50c65667159d79773a44c76860a909519019121",
    "signature": "0xc37f92ba8574bd7d8d1e66bd4c6e07dc60641afc4d7ccbf99b75f6e48362a1977566329cc74251e81fe66e4738dfb34a72e40ada4243b886fdbf1644ceb2d8331b",
    "signer": "0xe840Ad6F5f1ed80eAB032EeF491f6D569ad605fB",
    "userId": "907085528"
  }
}