{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "695639",
    "entityType": "User",
    "nonce": "0x75c76fda4e85c98fc8b330612e291637dd646fb704ded243b1483def8a4facf5",
    "signature": "0xa2f200d9d3ce65451109ed20551bebfa339773d9737a030bb748c193c0988e41471fe38849ad92db02c977ad4bdd1abcd973fdf07f135faef027c6bbb5d59cc51b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}