{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xff3a1f0cf9c12baa3eadedcf517aca4a56a8623bf787f29c1e7eff0e7c43bfad",
    "signature": "0x1e4cd6ca39b23741e064468ee9d60a91b700ffa85059de2fc89b95f8e9e7ec993e55c993181d01cb70ecaffedf720a205c50a76f164c4c5beec65d3b79abb32f1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}