{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x7c463645fd10470b25b4933a53b072bb8da2f83de6e3f955d60f070345c70bb9",
    "signature": "0x83edbd6d0c50a5634839218c4eab51346d3a2043ca71fcce8befa052b7bc8b2d24d31aa50a8d1ac0e38d66b39696ae7346953de72e8ce4dcc89a2dd444a01b7b1c",
    "signer": "0x7B0C8223b73b88E2ff71FA991cd22e99D81fA154",
    "userId": "394678487"
  }
}