{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x3e3cd5621e42875edc2c1dc108ea3ff6349721fe3274cf01f48cdeadfa683c42",
    "signature": "0xd00b1437435b2064dd30922b29062ffbcf2a4548a0414c9a16648eb19863d7b2708b685c2bd1b19f2e958a45454fe7f840fe123c8d0fa5ae6117741f8e5525d71c",
    "signer": "0x3440Ce8A32b4A4e6b83acadEee0551fc19E21C6c",
    "userId": "36658769"
  }
}