{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342841",
    "entityType": "User",
    "nonce": "0x0a30ba69eb36a934b8a7c75bbba71bce966e5272aa7db79aa051d6366a0b1d20",
    "signature": "0x7b7c415b4bc0126df260b0700e812c0067a775426d3c8e5a9336f22d34df20974c083ec66500dc5fe22c1884542bd450326cfef435e13498809de65c9217843d1c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}