{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231089",
    "entityType": "User",
    "nonce": "0x397765569a2b083ea627ac58b793ed3b5ac29c028324342c7a2ee7d7e57f6e75",
    "signature": "0x9d30ffe710a6b748b599bd6cc5277a2b18f9cf4d3001b964f7dd8dcf5e10648210ebf095089e895453436742926a712d7579c6d330f4d5b437ec9e676a54573c1b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}