{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x95f9f90a5024758b631efa9aa3836ba2b11c8f284dcc0c9247d3c5ca2cbbba1f",
    "signature": "0x67bdf77902e067cefd486c40354f82648e2fb2ada0aed371040c9695cde6cc9c090125058a9827c0bb248838494f10754b9e46412113f75d8571e7594f9294441c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}