{
  "manageEntity": {
    "action": "Update",
    "entityId": "762940588",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasie2u764i5gee6v6ryfviaxqakfwy2r4ocavl4lxlunkfwqpofoa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":106278873}]}}}",
    "nonce": "0x2201a22fd1b0b0f6cf8ccb08e0b3f34223600258d6440d074520857d70865558",
    "signature": "0x96e21d220e9dc8b42cb212e56ab6475684ef5b050c9002788eefe768de9d27ad516312e521d4df68d1443f0df92794cd8aac476fe070d8f7282378666c17eb6d1b",
    "signer": "0x39a7C13F3b1bd0348543eD06174A306230F8285D",
    "userId": "762940588"
  }
}