{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1a92c48ce586b3a213d72979b7307580be2f1e086022b719137fb9654e11930b",
    "signature": "0xeac13535bc859d4e8ca467ff824341c7effaf1761f4cf44f7f1de400c2c28a00282667c454ebc7b486c8001339f661727203b124754f48f7c70bdb1492e538f21b",
    "signer": "0x8D89002a0b137EAA7036d87693210357CFF9d38E",
    "userId": "329799320"
  }
}