{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1709250",
    "entityType": "User",
    "nonce": "0x77e87b787996400c227dc5f0644eb0205cfbda17edd57f63defec8d4786f4733",
    "signature": "0x31da9da7dd57454dfe8c620c02a185573aab43541f9300e4726e3d4e07ca523e0d44c88e57ecb9e2809b050c4364ac255bffe49119707ff09dca96d7c3da0e7d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}