{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1432489",
    "entityType": "User",
    "nonce": "0x1692ea4a34ea9d06b489ec1e03ef81af939897db7fa5aeddf7df6914088e326e",
    "signature": "0xfa6b0127f6fc71fca359f0341e9a0bb7efb3c43e516aad97234c4b1a7efd1020367c154f241b8c899f6455f192ca5a9b4540cef0343f7307a06ed8a34e5f051e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}