{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x6c2f4368e06af094fb1340f949457ca80a53bab24e11c558b9cac15dbf6ab3be",
    "signature": "0xdfec76010b8bef21b98aa89ab5c98e3a4da9c5ae8b69be311ced5a5f543a071d2a8be7fd1520114a5878b491b19877c60586fffc624a4fb99514fe72393eb60b1c",
    "signer": "0x7D77f68f76704335F7218Ccf910eb5367BE9A91C",
    "userId": "868342234"
  }
}