{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75351",
    "entityType": "User",
    "nonce": "0x1071698785238dfb72edb9a6e92c573514103641f4ca95b2e119618433098036",
    "signature": "0x6191ee752280132799984dd9590a225854bb7089f9fa3d0a042e757ef01b23642a008cf0353c5241df5018c607005ea1757efcc6a05786fd14e255b4c3e12ffc1c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}