{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8572",
    "entityType": "User",
    "nonce": "0xf7c5dc875d413c915f36da09fb27fb8ea6f0b05984a0728b26e73ce27f7d2cb8",
    "signature": "0xaee1eb4f194314ed987cd148d8792a768bcb9027a2b7be9d35b3148d174265093c331924b5d96a5ccb37f36cc556009c615ba9889f558de0c37332cb62eb86971b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}