{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x8b0cd52ddf5997ffba2cc33e14380324483c155cf937ef9ba557dee645750e17",
    "signature": "0x54dc1c5085c8a5a332f3fe2460e418ce9f3760b7ccdc9339fa87fe37f558d2cc0ccf147cc3dc321b4e45d2e9ed54b271081c1228339e48e0c3235c57e9c8a4011c",
    "signer": "0x50e36031F9e4FA9c1f2e791c76a5c9FA1dE71ee1",
    "userId": "918410332"
  }
}