{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63084",
    "entityType": "User",
    "nonce": "0x55bc3453f3f702ef1c78fb9cf6b9e6eca9bd6fe1a9459dde98a28031778899fe",
    "signature": "0x48e35c7eca01c02e0af2ab1509837f11afb269a959defd29ee17c1c11453927b1e54ff1b4d9ecbd859fe186c163c5ee834d9e9a908464a0d6d135342021e41231b",
    "signer": "0x441F39B467Eb5d276bD5413c62C6f97231CAFDC8",
    "userId": "345792093"
  }
}