{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1807579",
    "entityType": "User",
    "nonce": "0x3b3a1558a8694bf7e41e90088ec17f55ca43247d6e903ab1bfb3526251a82c1d",
    "signature": "0x35b12f6ac03295d1d697e8e45130f259bb06398ac91dde5c9d9a4c30632b9fd656c76da5e97aad3134799d4d9622998bacfe386f5ae2c187fd6f75a5bec7e3f21b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}