{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x70ee8d64e4d454e21f21329db1091671578fa9e2b538c12c675b262187b219f2",
    "signature": "0x2246024daf452cb927dd107de3779334ad43796566213ca0f672adb76f5e352458041cbd6f8dd6d6dc36ea4ad8fa7b8b91bc9c225508342a916ec09aaca06cf81b",
    "signer": "0x715D54C93C1ec991c4dCe443CeC03D80B061c564",
    "userId": "519760223"
  }
}