{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xecbb22a6f8bc310d4b86b30ff6f50a8bad98c9c00aa5be114b9a602908feea28",
    "signature": "0x1139d1c97feb590aaa7ae8bd95284eb5ba0e32818abf0ccebcec978c80a4000756735a6f379eef481a7d7af63df950fe3e0670fb55531f644a9051228be99ca81c",
    "signer": "0x208e6057D01b0354527DBfC7fdf291970F26ec83",
    "userId": "279907588"
  }
}