{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "744857756",
    "entityType": "User",
    "nonce": "0x89ff20d6411e7d0586ff6d6b7395e6297040d442889d1f12f6f22befddb0599a",
    "signature": "0x42fb7b92292e18e39aee82d4f22d171f5fc87b801d809ed1ab2344c1fe3e957b58c3d74d3a2816aa768415239cf7786c347e2c347250617ace442a980678c4a21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}