{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398277387",
    "entityType": "User",
    "nonce": "0x6c1aec0af92a080c5e5276570edeabac087ab2fc46aa34676e4893d87d1428c4",
    "signature": "0xa08ed9d86d5074cbf4ef84e9b5764a6be49a93f3694a6d781b989e3e3fe3a710122f66d7c752367272b4d73e5ce9e6437e3f896753208b8c9e2cbef095b5d20a1c",
    "signer": "0x3Ec98fFA47eF7773803b73964753B99Ae2D50f41",
    "userId": "545926315"
  }
}