{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219315",
    "entityType": "User",
    "nonce": "0x9a95d51ecb63be1d45535cd28fc9217360dc41602c69fee43ca1b0f5dcdcd988",
    "signature": "0x7efb01b756d450a3ed2734d63de3a55237aedd0021f8dcbe9533bc8410f321e94ead1b9fcf725093b947cb914ad388fb3ad7d32e52248f4a3c6905d2949809cf1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}