{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xa3094570d2670747fa98e06e5e5e68413190456c\"}",
    "nonce": "0x1db0b80b9369d2c2fc0ee4146c65bd7dcb9730c12b59f8d076be671a9ecb1d10",
    "signature": "0x720d30847b59869151cfbc67b869af1ce4e5f3cad5a91c0c2f0ee33fb36cf4ea5c60cfa44392b772715ad134b3574512fe98828709a8309600048026c668ab6e1c",
    "signer": "0x04912165a5E79891e24E66059e7888624bf43e70",
    "userId": "761845704"
  }
}