{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "681909",
    "entityType": "User",
    "nonce": "0xd6ae7727cbbdeaa62c07459b80b9fd8034b8311f1417f4a7e7f17a1f50ef7ae6",
    "signature": "0x3c3bb21d4366edd7e4cfc435990dcdb330b66203236b4c2357b4cbb338e00d2551b0bb41e5b2a5984636c88156ac88bff2b9d31ca1f86be50b32a2e1e39d35361c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}