{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9dd58675f82df27653ab17f1d38e10d3647eae8876cb30984b8f181ac4028eb6",
    "signature": "0xf52616a92d9e0238c29226afbd9a1f90de8015070c0f7a27b04e9345162385b006e80e1567f7b441a4352ed163213bc8173040f697caba30d927d26c3bb3a58f1c",
    "signer": "0x078612c67942684EA98B7945955AcB5782034897",
    "userId": "659477737"
  }
}