{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x81ab1ce7b9ba385ab80a112ed5a73c9bddcc830acd69df927aa36a6ef5fa201f",
    "signature": "0x1374859dfcfe0c13354ec739b9507f25be55ca90db735edeef9018937f17fe83458c7f1f3393a9bf00c8da6bb636ea841ddb0ee5795a5adcaf78f53e7c885f6e1c",
    "signer": "0xB9095923a07F044b400bf3CeE4b269790353935D",
    "userId": "230935100"
  }
}