{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12752",
    "entityType": "User",
    "nonce": "0xcb12a51d3147ffb5e2c377e2160b5d74116f390572059f0e4a44362900321dd9",
    "signature": "0x55526d7387be8101c7d345fd32891a875c15e017610020c90c4fea3ad64dbe34764a5a3f100cec8aaf49bca402a9ab3f1b89d12e21639ab59270ab3cdec88c861b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}