{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x91092918cc7d89d66a9d2ba410b65e0d3d0439cbaf4b8a9047e847c9d0f76956",
    "signature": "0x08e878291567bf8a8f5c68b1d0b98a832b932ca0f453d5938abb03cf8b0e016a0aa50b47099bb165b022bb803d6ffdc0b4a50781949944b40c2a6c00af4a05f21b",
    "signer": "0x0413Bb9fF9AF9905b25d1679598F5c3324e59975",
    "userId": "472609994"
  }
}