{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf073f01c974de5404aeaeca67048a97f8c76a750852697060252d8e98ca0fcb7",
    "signature": "0xee067b9ef1d9c1a81528a960f2413dfe8e80a41d2d5b4bb4e412f235ede76a3f341e335ed6c879b373bf9c93e24a8c8d6c0f3a9c6643477c9d5c489d4197a1961b",
    "signer": "0x5e8F7DFF9430470B66AbB149eBF4b74c311B2bFc",
    "userId": "125844630"
  }
}