{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x15c09392b3d192e71ee5b8c7648fcf318fe1bd7e\"}",
    "nonce": "0xa1b352589019fe82eae67bfa92e249a39cc8bac799b0625ec071ee8314c85a22",
    "signature": "0x4c7da557ae0dd7a010f4e9b99095c1c97bb2e879f4005e3ad682e8d9c7b7e5f07168cd16a60b406714793960943119b3e1f94bf9dfe8302f39128106b63670201c",
    "signer": "0xB07eb78d4b63deD98739EB7a9d5d1119cb4B3cB1",
    "userId": "28561"
  }
}