{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125672",
    "entityType": "User",
    "nonce": "0xb7a2f911a89929b5c78eb97723effe3c9b169382f03ee10ccad1cf0a34631dce",
    "signature": "0xf7ec7136274349e8ca98356401d2ea6a72507d4ce954965b00630dd85e55b7921149b09ee72a3feabd0e25e9f61d29b7d371ae71af90bd6aae1cf7143987f1d21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}