{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5dd092a0f0f6bcb6f118f90220ed67cd56d9f22bf77d303f1060b1b6a83b375a",
    "signature": "0xd8d176e56148e7c8b92846df08c51c95a6f9fc3d0bc0ebeb76f303d363ce21fd6f627b08e4104258a9f42e3f2277bbe6d8b3b515b4f0990f57ea1cf88e028f051b",
    "signer": "0xc76D100aD3c4fa27A6AB1129336cD9F0dE944556",
    "userId": "370431760"
  }
}