{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101240",
    "entityType": "User",
    "nonce": "0x578cd9564d339b4743812c41b7c5ff33022063314fceaf399aca232c567934f0",
    "signature": "0x7505645f083ec3da81744160e4577c117c874c46efe134d1549df319a5981607748ca3054b25fa4266afdcd4a9da2176dab7e7248a7deb09cad914815c8bd70f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}