{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90604",
    "entityType": "User",
    "nonce": "0xa179635cc80b3462f21b148ae8cb380083d79d235323147c95a3ff8680782678",
    "signature": "0xb46add9ea4f6f1360a3af9c15a3617bc47999b621e41eadbc96db34cf1df30be66d220861e1f4743039b249ed9ae6a9228bb02f97f701aede9e67470dec076ab1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}