{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x371ed3dd1c17621a054fd71da6962cc0fb75e6422a51b1bba838828ccf77850f",
    "signature": "0x7a3fc1b543d8d3f6521f128146e75db1780f92fe8e35824d4dde8622e289febd25ad4ac4b373c0dc4cbbf5e727603a73c108d1fac161b0c57336420a82c263de1c",
    "signer": "0x31d839fecE67918e20522D6573544cB272F92c7e",
    "userId": "754382673"
  }
}