{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x5d03af920247e33d5c3c121898feeee674f57c8988208bdcec2728f99dbfe787",
    "signature": "0x3a390b91958c188bc5f8560b2914697a4f14c5b8ee2929c730d5f52b573a0a222c0cb3ac15706290337f04dcf6cabca127eba802b3335eb930be2ffae191b3561b",
    "signer": "0x6F272bE0cf1929131937536d1E57b571a5bEd994",
    "userId": "477662771"
  }
}