{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396",
    "entityType": "User",
    "nonce": "0x81ab7883950f9ad20fa8a69bc7ddb50c96feecbcc9ef8991799e0f9b6cfb3f5c",
    "signature": "0x95ecae8ac73cdf9ad753a80144f23b6f186a7fea184e5e2b6182881fe80ce5115a2dd9741b68ba9d0a30b9921f577d2cb01e4e8c4c2dc32f476d194c6625ba8e1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}