{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8561d3643155b5d9a1fac773b79815b6ae9a3d5e5ab23295ac40f32126ef3b4",
    "signature": "0x709901b5663052c1cd833dfee98f5003b78e913ab1387435c2c2f3f03c6222b977630fa85531a9f63590822071cde5017391287deefe5252c68de155a68102531b",
    "signer": "0xd5Ec6Dd96990D5BFfC9f13A05EB6DF120A1235d0",
    "userId": "570105610"
  }
}