{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xa2ce1ebc6945937ad9504db8329c0fdf7b92fb4c\"}",
    "nonce": "0xf52b90840507057b37ff7ccd63d5299fd32aad5e4e770bb027bb67dcdbcf83b1",
    "signature": "0xe7d58238500a24caab9f01c918e52f5b55beb29a70f7b0504c25b417e241135e67584755ed6583ec07db5cc851c510726a0fda08d94230aa0fe3e55b6e36c4d01b",
    "signer": "0x062DD2120F47140F9aec047FDC383ae00474893e",
    "userId": "773253455"
  }
}