{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x3f3ee9b10ba687e4d85d2c9ebcfc9743104410f8d53abd7a6a963e7c2586e307",
    "signature": "0xebd5751b42097ccae87403537b51dce2dc6ecc3b44326f3d6e46d47b6c7ebcfa500cba974d03cef898cf16ba7e56ff4ab148a0ff841e63612f991ac49b27f6121c",
    "signer": "0x21832d413C699cf565c637c560BB169F5B7690E4",
    "userId": "384580810"
  }
}