{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37997",
    "entityType": "User",
    "nonce": "0xeedd9c386d1fa17e2d9129d6648dce7503b408b0008a12dd75381fbce30cd126",
    "signature": "0xc27ba3e2bb268ccc036c0ca619ec50bc20bd2b458e4bc4358931bcc7871fca530039218e4426c432a353a4115f7c3b93a3244be9e17d530c4fd2ce2bedae07961b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}