{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaaa72ea734d8fe98ac752195ae82de92400703b22f196de407c0b4f7bb720a19",
    "signature": "0xe7790e975184c84b9f3f865a64bd5277bf74f27a6b1f92fae662a916590353b41c20cedb58f79858ffb2f03c306fee9f4cd8e8a75855fed70da536b13cc8a8741b",
    "signer": "0x0c0CE74bBA15600974758A2751EAcaF4f485464a",
    "userId": "299050587"
  }
}