{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xd42a1d3016e97b01193114e7dfbb09ae1e7384c4e1be20b55c6dde6120628e18",
    "signature": "0xfa07b736240c44a3d9d4fe43eeae64d1951d3ebd8179cebbc247f36f7ce00a3d2f89fc99b2fbc598e6e03a10d1b5c3a590742ceac41f5ec751677276fb85db7a1b",
    "signer": "0x42EbD46dCC0B27f9316667549695bD666598BD86",
    "userId": "957035490"
  }
}