{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xcf3d7734bd4b1b32d9b59a49e546b52e26691ad0\"}",
    "nonce": "0x44d609fc62e07c1ac235e9193b361c15d54e248d0eab4f2f9b110ba46658beee",
    "signature": "0x120a5e8f03fb141cdaaca6911feab751cd33da9533de97ed5aa7aa793ecb70b97babb4ba224f7cb9d1a87db6a8e74aaa0ab627f09f55b7b83c5956cc7fed806f1b",
    "signer": "0x1a994E5b35526111E7aA92FECe1815F5099c72B2",
    "userId": "348740"
  }
}