{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xa89f55c8c0958a5c4430af8a44f9a47f20b51beb9fc61585c03d41c17e71ca3a",
    "signature": "0xef0bddf0a4c5ea8fa7b9c65d841c0de209f8542cba1c77cc5d9dd2a9864cb8703612b2a06049d7205c037ba205f2fa8283f0d2187aa966361fd4a4fd9a4dd5011b",
    "signer": "0x1F64285Fe16e22a6e3da8FF845AE130258907c68",
    "userId": "543429248"
  }
}