{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "729406477",
    "entityType": "User",
    "nonce": "0xb388165d2d42c61c119faead62f8174e7ddba091545f4de00accb4ce2011afd2",
    "signature": "0xadf82a81f7fff6370b3dbd7296c3425afa3ce0b42149ae9cfb2b4ec63bf4a82a1d7d44e219e8fa4c42cdc93b702a0d2c0cbeb16e6cf19914864059da1a64a5201b",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}