{
"manageEntity": {
"action": "Create",
"entityType": "Grant",
"metadata": "{\"grantee_address\":\"0x6687b667182cfdc5646f5aeb14a9945c9b1d3a6b\"}",
"nonce": "0x10555fbb5823736ac4bf6a7f976b7bdc97d0eeb613e1a186361187bb83a64bbd",
"signature": "0x91bf022c4560ee42053aed4e71186a1385b2f4db5b7cc80d2533709d0e1ad0852b568d62afb2672b436c56671e40a278faab14c52f848162646911ff7315c6551c",
"signer": "0x1a14b86421cFD1157bB52D3B0799f0B24a926D3e",
"userId": "693608897"
}
}