{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x911a9ba2ea18d7f5f07971646466a5da45931512\"}",
    "nonce": "0xebd0bb4517f46027a45a5f20428b7843589a8f5e9c72efeb7e555cf74a8c610d",
    "signature": "0x2947e3bbf9b7d71d19222f41a68a18fc906f5261bded551b5f6b57be0428de62157b2100bcd9742cc0d139f4c9f3fff609777ee51a8e8168e6d8018da7c3fde51c",
    "signer": "0xD8c6AA7e6F2a2F4fA3eed23c2FB844ec405e1aE7",
    "userId": "989632585"
  }
}