{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x4aa2c865adc4e1f16fc98c1b2f5c7891a7b31778119c880bfcec5c0213ac9f8c",
    "signature": "0xc49823601a447f01a608b0ac0d1568424d036253a4f4242c27b146be0bc791271067f1ed35ba20bd74a61e658b563045edb0e6940bc3e1ddbaf28b040bc6139d1c",
    "signer": "0xD1E3660E3d2E994E3d912240f6475027D2D2eF62",
    "userId": "515487422"
  }
}