{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "416239376",
    "entityType": "User",
    "nonce": "0x0d96b1ae5fa95ec6133aa7592bfa92291eb21932c0fb4e8d2eaaa8e6fc1fa6fc",
    "signature": "0x01565efd5f1dac62d444e564c4fc7704cc7e0b5ecf016f1ec111630f6554f41e1d2dc818b52cb8907d684f7c3677918d4707baead05130382d3fe19e726e2f241b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}