{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xb2720ea1e558c768674c6015ce764027bd90bbc9\"}",
    "nonce": "0x7d8458b18eedf5fc24867d83cf31682aa7690fec5ae4f5ef0f745d51e21abb25",
    "signature": "0xc4b753dabc725f3f0d9f91ef35df94cc6a59e5cd77e7c680a5fdef1d694365ac6e3a95ef9edbe6e03a6dfe034f7fa11c31cea55e0039205d67fa0ca8ae168b1b1c",
    "signer": "0x792621c97847235a3111C7592d6869242362DB56",
    "userId": "733932061"
  }
}