{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x12807dd7663d73e70b9671dc988f64ac35c2fcf77124752ed4314de166e638ed",
    "signature": "0xa93dda41fc429b6345aba8bea7f0356df96639abbd7611482f768a328ae5a77f6f31b4853049e1ffd627b6c4110f1bc74da2e6cf53c3fe3cc0f2cbd895353bf21c",
    "signer": "0x94594993B901cD01207054ff488a37B5Fb3757B8",
    "userId": "405346729"
  }
}