{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370091516",
    "entityType": "User",
    "nonce": "0xa7bd21f59d0aa3cfa697fcbc3c7900e7258bbd8747e2e425c3be493cebd7ff51",
    "signature": "0xe506dd35858bbeba9d4ec60cfde9a7d85bb56e4594c370fc1d2a23d3351392be05ed9451aad02dae5ccdc3fa24ff503e7535c6ffdc10137a99e06843795039231c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}