{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315393",
    "entityType": "User",
    "nonce": "0x59d506cb8282a7ef62f0c1422f9bbd27221be3b093b83b8a11959c4e31ea3cb9",
    "signature": "0x39719b4a9882591a65a66e5833725be1b53b866ac1f883e3d07bb4756123d6de154ba70926944eed7554654298c44e837c1492b9c75238e319c0efb6aff11cec1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}