{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0xbe90769af1d4cd8571c7c92b8b6df8858f99a34c668d489f32a852b1432d3c66",
    "signature": "0xeca88c73e08e4dd0dc0ccc4818fb867bef11f2d04750d5fea44e802c2e8a587329db759134a7c06823a29bec160e11c4329c7c59fc454cd57bcb5c23765fe6ca1c",
    "signer": "0xe3dfDcce430f7Aa6c0F89cCBDcADDaf60d6a2315",
    "userId": "955631048"
  }
}