{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99409",
    "entityType": "User",
    "nonce": "0x5d368ee7fbca4dfb262b9b090b764f7885779247583303c6bb2d137299f356e1",
    "signature": "0x793646a6dc76bfab118fd66f06389c33475d4f183e5ee94dfa2427c6138676b324053f535eb3489462dc80235effceadad83d058957b9ec2b3b99fc912992dee1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}