{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x5a47981eaad66e5c11b2e70ba1b03a13c11bdca1a318c83267db291196142219",
    "signature": "0x12fcb4c90ea99110f6092312643f829a3fd638ae2bd6a14941e3fa14326593b71e606bbd694f0564ec92cd442a4cb93e4374ccbea509ea4c0ec630ac463074b71c",
    "signer": "0xE654E5fFE1A86cE4964f8D2dFC8676C1F78E34be",
    "userId": "689942636"
  }
}