{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7821",
    "entityType": "User",
    "nonce": "0x656c09bceb46cd3782dafcb4d0eae8c4350cc3fab054f474f7730838441dbbbb",
    "signature": "0xc0cdcd1a3dc687906880b9eaafb84b0cc22d3b974f28f8ea260a900e71727099412d73623f8146a382082f41fdc5452338bc9c99ef84935c8ae15d846a5a556e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}