{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xae325725de2aee077c1f06edcecc1587ef8c4036b14f7f8afbb77958570d2b62",
    "signature": "0x61ab1ed4e2e5c6d78b713ceb791cc2922160cf8163d71f945462ea638c06da613e56a8f2a63b2b4bc0891208e140b482f3b95815163e2317e57a4fd9d971bc701b",
    "signer": "0xC8FAf3b1e95046008820d0d4C34bab548e194c9C",
    "userId": "192578380"
  }
}