{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x96e8b9f0bd73cda5a9732b7290f3743561407d9730a915d24b9d8684bfd40f91",
    "signature": "0x2a82b1bebfb1d42cc7e46c784f08c017729083ce56447e1378e4b7ed0a1605c41b1a7db360f4b7c55bc02f5609c18d07e17dec837b4506eb32c5c8599cb538981b",
    "signer": "0x3286D52DDe880AC5Cf014E75F370218E55d63F54",
    "userId": "197822364"
  }
}