{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x2a0716428cd8f824e5bb8ed45b7688efba7115b3e033cdb557ce4c76a4946548",
    "signature": "0x61663ba3e4c210967133c11803c4b5db0aa39b6b52955522201b1fee22a188b6288ec900fee93f65aff9639e1279fc4d76927e5eb2aef0412728245bec8b0ced1b",
    "signer": "0x417dE305b5bd8f9ae4c16EB85403b9b85f296744",
    "userId": "225867686"
  }
}