{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xd5782ebfa75b52b3f32428715d7e7e3ad4c717da\"}",
    "nonce": "0x7b0607a31760904d572c7a1befa07df2bf98cbc115d77a4fb1a908da0a264142",
    "signature": "0x2ea46f6abf09541e53b30a87443fefea6d464a3f90716d2a6688a416b186516d0b3e3655136a2b7e45be49dacef44da101390e1442545d0b5c7d77828e722bb01c",
    "signer": "0xD15d476cEc95e7e2a0875105F67541Bdb2bDd1Af",
    "userId": "472641"
  }
}