{
  "manageEntity": {
    "action": "Approve",
    "entityType": "Grant",
    "metadata": "{\"grantor_user_id\":1389486}",
    "nonce": "0x633ee1310811b08fec40a7267c052ec98461fc1bddce7df961611c805b59005b",
    "signature": "0xf2d3fee7820d0c08a7a13f2058da82731362924f953a92dec27003d54533b4985b1f9f70f334137668fd88c8df3d9eb135ebf2aad998a028f7e866ae1ab1acc01b",
    "signer": "0x593095CdF6998387B0c1bd237B5e2e1f5022C99a",
    "userId": "77401"
  }
}