{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "293386",
    "entityType": "User",
    "nonce": "0x9e031257d07368abdc9068aba5742b7020cd40abdfe4848f4a8318bf336ffd06",
    "signature": "0x16e1f08278839a9889831e34c321417158b873fe0cfd28454c9eede233f0b52e62ada15159f1121325678064ed70f0f91d97132ade05500486d406b3792399301b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}