{
  "manageEntity": {
    "action": "Update",
    "entityId": "403438532",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x63c219231764158aff8951864b87faca0ed3007c74ec8589199d02d2451057a4",
    "signature": "0x8e63e118aa91bfdfb5a1689186dd869f1a0dde9f166cdcf3da616d21009cbc6d4a4e3fc991c3f4562cd2ccb495be848fe6aaad3388e29a1bbb4a02f7bcf0afae1c",
    "signer": "0x069B8AfA1738ee411F7138e49d8baA21774732C8",
    "userId": "403438532"
  }
}