{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271555",
    "entityType": "User",
    "nonce": "0xe4ecf8ec98d318d4fc9cac41cf7e614ace7644c16d484d2c14f02b4a9dfc2cbe",
    "signature": "0x31af804cd64df98634874e140e18497499e94a0cf7e44a68a76c77a54f02014444d31ee668208d8f55d2e67d1cce877640d60454f798de467ab44e4e1f64fd721c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}