{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5684",
    "entityType": "User",
    "nonce": "0xe779f2aa506a565f456c5044535f92e1720a189b4df7eff87f61ca40ad3f8766",
    "signature": "0xd95d93d37d6baaf87c2d1c3f9167982f61f17df378e42ecda84b5ad5f9505052158a67ad6f9d48ca29ab0dcd3c8fea74e69bbf8b9f6cd80a72b5d57df83ce1111b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}