{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3887",
    "entityType": "User",
    "nonce": "0x1c4192db27055984d805765c3f1a4693830978df3405ad2836675b7f5346269d",
    "signature": "0x6b7a0f9d23024f535d63ddbfcf319ce29e8c1914a2e36702bbf047a9d44b91ce44f744d4339bd6f0efb3032e8a73f7b7749bce7d632da8e177b643090851137c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}