{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xb8be03ad4ecae71367df15e03a392e264902c0a6d1c9746974e093e8e5a10b09",
    "signature": "0xb911e1a8f93d413728ab5ea9a6da4eceff158f63bb8cd5951376d7f40b56a0de5ceee657944fb747ecdc19c0b31c2c3eca2f2655db6e39688aa3ee47752898301b",
    "signer": "0x87032f19b2aAbe1411063c868a46D6abB946e9e2",
    "userId": "629995942"
  }
}