{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103234",
    "entityType": "User",
    "nonce": "0x1d052b87850bf424ca4b14b499add9e568c207438ffa124410a4c517ca085521",
    "signature": "0xb5a32905a10ba5542dbafa51a7f0ee158f2d60c3088563e2d7e345131aa26c960535feb0bfb28d7b095e360bf8698a060a81e3fc4a2a61d55af4de7940719a2e1b",
    "signer": "0xD55DC3bb788f477f695183900Fff41982fa8ecfF",
    "userId": "677613980"
  }
}