{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x1ba4906aea0d0f5571bdd6e4985c59ad97ab51b2\"}",
    "nonce": "0xc527023b56a0465af61fe902f547a8cb5fc44c952f9920f76ceb37f899ec3beb",
    "signature": "0xf17864878de07c15bd56843cf5ae12c4998131bedfbc3647b01a5c2a2cce617855efa593f7e12abbd0db90579ec4c76c2dc9d0e251da1e26d86c44773f30f4f81b",
    "signer": "0x6AB94b4C02b028A8D1818Fa64354b721779A0490",
    "userId": "426352798"
  }
}