{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318749",
    "entityType": "User",
    "nonce": "0xb38fd18ad09be202d0712db615662c529e56afcc32847a2f2da6175544b8e1bd",
    "signature": "0xadae9d956614986e955b47700cd5991c49c6906ba93a496fff21e88aa00b39b55c4bd3989659ab49fd802ed17a15baca1b9a1f92ad04ebd7b100fcde214745d61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}