{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0xd998d952e79edf6753f81a65a321a6926810c62a6ce60c3a144da7a6348be4ff",
    "signature": "0xb28e0c6d47e32f0fae47876b1d24faefd832e098d9fb6a6708a503fabedfc4e00b3bf61a425644bdcb3e6130cab9408beb2f8e5d10bfad34450db0446e0fa8401b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}