{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x464bbd3f26ff28d2d9dcaf2ab63abbad4b847485ebdb2d7d6a0393d429d5c160",
    "signature": "0xf83ff2b4aecb397cec27d3882b7d3a35a2a7bce36cb22974cc650416348f308d1a3de68c639632b219dd30d3ed02fa41e7555b2327b86317d3007be59c9b12d61b",
    "signer": "0xA19746FA6e15DD28CBBFfC7B175b01480DABc62B",
    "userId": "358527617"
  }
}