{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x82d49f68dc1375d85feba602e7ee02cbf7c9a515\"}",
    "nonce": "0x476294473b6b1d508f38db406214541361310d2b51f45652db2597b84c4bfe96",
    "signature": "0xa07964090ec73e58b76a2edae3cfe2242b9da3c1700c3ec50b0ec068acef6ad332b3cce353ab54a1f546f2a107ad3748e9b36374fcc8ab7895ceb83869a2b2aa1b",
    "signer": "0x1afD7C06b595d555DCF6565E19e70cC7D3438884",
    "userId": "155991716"
  }
}