{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6372",
    "entityType": "User",
    "nonce": "0x4314205382e8da67bf76ae67ab7f1e10eb2d84e1cdb5f6a66225eddf7737144c",
    "signature": "0x5271bc4f4f3e48953f1fb3c6ad84a35dd66b2c951d353be6cb159ffc5051f6b916d7563cc2f477989b0195573740e0b5aa8dc47bce60fda412fa33c7c0ab7ead1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}