{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3f8d48921888884f1becae8a47e8d30c8ab9eddc1fc83ff5843a30dc12eddaaa",
    "signature": "0xb82fa390f8073b9b7950e9bf0d78a2952beffb1aaaafe632fbf875524c8499c231ee6363c82e055cd8881fb2183e8612f51d76146a9353acaf48929083ce469d1b",
    "signer": "0x1080460F21DCc82D7160d2C77DaAb22a92c4dD22",
    "userId": "162106877"
  }
}