{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191625",
    "entityType": "User",
    "nonce": "0xea334d51e8155d899fd1ac0e99ead235e2e99c4014aa903eb62fe92be8dbd736",
    "signature": "0xd8c13277352ea1de2928a3a26a032631ce32dffe8dbfdf81effa56a76ee59f52716b0bde40690c8ee7bb2d82c981147537fe797ebd68d56325dc945d4a8bf9071c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}