{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0xc16325a69ec9a80fd534589f472ca9990c0f97414f057309b438c9f01c95e32c",
    "signature": "0x2d73569cdfe9d89e22ade9bfd023ce4b4f7270eb858d1fc3038b9763c9ff138a39b449404f0b3ec73ebd28a5410d3dd89f460aa5e32a636a867c4f5d0a6887441c",
    "signer": "0xF92E3Be85294Fbc19D37E7c909773B572755f070",
    "userId": "478204378"
  }
}