{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0608a632fab10d69e92e8fcfa1416ad7e75357437b72e6100b31cc00b7953157",
    "signature": "0xeb8cac58537fb027dbb8812fbc46b6b5f4d7c8c29db384c45f77b2017b89d8a079a8268d37a4ab6570b26de6b8876766fa9946d4ed3e5e30d5eb47c48ee20f7e1c",
    "signer": "0x80F75b4F31839103d97B92E50293B8579c90f82e",
    "userId": "165670909"
  }
}