{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x49caef40de18aef5e55b5d9a10d6915864160cb27288dad9a0955b1f41c9f5a2",
    "signature": "0xea09d0530be0ce85696d3b5329ad63fa7cbf4b19426175a2b10e3873164d9d1e179776d5d4e84bbe4c3d54ffae15e2c6d84f1896d249a7e2fab2cb10ae3d2dec1c",
    "signer": "0xe9509D164c62d1c7FcdBB871AE3b747da60bfAc5",
    "userId": "83291929"
  }
}