{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x593095cdf6998387b0c1bd237b5e2e1f5022c99a\"}",
    "nonce": "0xb8fdca222f2990e80ce351b6a2911bb9cff9dfc12c028967ce01d9beb4860ff1",
    "signature": "0x372ebe7ee5f38d80c1eccae02a2fa6933152764f1086bdd97941b79029588b7b7e19088d368d76d765a3c1243da1f17a43fc8fb58a4e919505899c9ce0d356661c",
    "signer": "0xa8E826FE24511DE23c79aAf55ADA6A3a730Ef652",
    "userId": "1389486"
  }
}