{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313979",
    "entityType": "User",
    "nonce": "0xabd10b78f2c9445ad2d1c2264609b9adfd1b8e617a27f96d083cf69822061fb6",
    "signature": "0x298e889101377a4885ba1091cf9cff47fdf1e237bb74eb09911b64e6dfa1e5a56b13fd6ae848e6ea7fd6f61da63ceb209c8b5eb799114035fe4be010c08f4eb21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}