{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0x31664927ef9a275064dadc5f7f76d0be524f7c6903e58a5dd9f94bdb6c5a0d3e",
    "signature": "0x5488926d5d16f8f20a76a8bbcf5c7c6c4949d169bf4bca9beb892a6955db7fe462eee3560cdde0a8c1a85240bdf73186d054ceb7ed766d94014f893a748e1c721b",
    "signer": "0xDD3Cb841c7f19ec5581F8E2b14d6f7a58B92d0F7",
    "userId": "582464754"
  }
}