{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xba4fcb2412128f9aa50c920ce76c378c28230f0b4dbc4ff461f9780a35190b49",
    "signature": "0xdbba0b27f8bcb0fcb6d531381095a23ee64eb1bc9c5a46e411f32fef78dd70c67df0439e15fa8c00a02bb8a6bbd925fe207779acef18d210e37b96f8d01eed041b",
    "signer": "0x04E7337264db0c1fE5777F0d74AFb74eF8f9A882",
    "userId": "378452320"
  }
}