{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x5826113b82941207533b0f2b86c3d5f2a00c1969\"}",
    "nonce": "0xe0859850561186ca000bca487511eb30853bc9dfba999cde4cde811ca929d393",
    "signature": "0x82ead32ec4c92f9147ea62f258e5d387ca88d2bfba1cbeafc962ef7f16c7e53b72a317fff772011cbda92827a8923298d55fb6ced3b594ec63df3f7ff55bcc5a1b",
    "signer": "0xc0e0724547BF4Ee891EF9997863789E179C3002f",
    "userId": "18138"
  }
}