{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd31ceb9494c9cdaef820353e63ad370be71d1dffebd86a3522e07c99c22b6555",
    "signature": "0x5dd6fc6c733b43298e6f4ca66626db8ee31230a6bc45b9103c90d3412315dbb6258af39c964570e41c559a562d17e51ae910ccf6fe77b6eef7e5c257907061831b",
    "signer": "0x0aeaf02eb3120bF5370D62FAF86B68D2B1bd8902",
    "userId": "525143232"
  }
}