{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42976",
    "entityType": "User",
    "nonce": "0xc914594282e3378cdcdcf584384fca33362af6852fa2bf07c764c5c5e22a2f30",
    "signature": "0x8f27813f35499d27ba155340dbbaa02a64481dd41217b63e3ff53438c549482f3b8e38ffcf24a604b352bda5e749460867b21c4c57c376ba8b137660608b3bae1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}