{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1686877",
    "entityType": "User",
    "nonce": "0x8b06ba5cebc14509d9b977e66b3216ca20d5a641d6c79cd1264a8ce3af07a18b",
    "signature": "0xe68d0bd1f9941ce06ee3d990ce431416b1ff0e87c96ee1769faab4284f2c534a4d2f8c007d87870f1b987136c5e37cb61cb25bb202408b04531fdae7ea93b6351c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}