{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1481230",
    "entityType": "User",
    "nonce": "0xe04c43b289fd05ad929ccd1df933a229ee6eee51c479412387a77c8456bf5016",
    "signature": "0xc4e3bdefacb53bce9e7d36216634a995abc2689d1666c7d1dfc00a6b18d81ac27e9673b1c6845b7bf997164d896ca65e807885717be727d01bdad3cc3f04cda61c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}