{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x9f88ac68e716a55ca0fb5854fa58f452cc3472cf\"}",
    "nonce": "0x844dd339e2bac17375bd84c2ee975d8731429eb6586a2ce4ca9b16fa61c6ee80",
    "signature": "0x9ac018e22bb4a0ef86d89bdf8d2c7ec44fc45a94b84fd0f83f4bf08bd4a73fc820c016d939c1dcf90e77095a70559f850cf7f1adb3b398b54f931e69fca970501b",
    "signer": "0xDB9B4d6f1Bf3233Cc2db514b94A488eE6a0Ee2Aa",
    "userId": "606556116"
  }
}