{
  "manageEntity": {
    "action": "Update",
    "entityId": "871965283",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa7f1bcbe46215b39b40144e25a871594c29da6b8dc95c31cafebd044a2896840",
    "signature": "0xf5f0a7e60750eba5a6569393373e038c9fe3b3d27917c22c97a6a7b68b468e881e3ba03bacc55980ab845d063e92a2a4cd52454e0e2e4133f6eb061f406ea0341c",
    "signer": "0x99667DB6f552F55fDc82e440071a4dFEE64Bdc7d",
    "userId": "871965283"
  }
}