{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1665031",
    "entityType": "User",
    "nonce": "0x37b1d4c55e282310f20f174a49b955867533261b0cfc76d9ee568d942d0013cc",
    "signature": "0x3571cd8fafbf020ce9de416b2ccb17703a5a3468a3e8d1e4ed7fbbdb3ace9b19343ed50d8e51d92c7fd5017980c31f353c5ae99a9c4794a8d29ff47f9b103a041c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}