{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "255385",
    "entityType": "User",
    "nonce": "0x8b62deaa7a9ecedccbbf4ea08dbdb8473a99278692c7673a9d6ecd74f6046a0c",
    "signature": "0x7a5c2ffc8b5984cc6c125976f615589d0300db0fb6aa7438e9c001ff4e9c10d57e4776622ba0cc62aefbf40734269479a50ad19da54625c66cf93701bb6885791b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}