{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12674",
    "entityType": "User",
    "nonce": "0xaef6ba3f7833628d4e9f47b8f83f31196e6bd0c77617f497c29fb64f6ca7e3c6",
    "signature": "0xb932bb1c42d31aa8341dc4001392f965793f148abd8162d58a95e9d38d5506f614832326757b73456ff0c1a6250af609f1712986b2c0a4898eb148cf8ad270fb1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}