{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8c5ba66083d1ef52d5caa8b250e7b66f4c21e272\"}",
    "nonce": "0x9bdbf565ac8208a0fef37cb0035193d4b59d0445ac180a0e760cad7fc0112193",
    "signature": "0xe4eafd334f2f86e6daaf34fdf1881fab76ae963e59c91462ffe9e750ee0d22fc38b010d679507d117228855502ee0a8bff23611c53da1d2b9477f50f1c257c2b1c",
    "signer": "0x93027a672fA454a78de7e5FF1f373acC93252b99",
    "userId": "332861409"
  }
}