{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x250ec57b7e3f6468994eeece3a14bddde851b1aa884ceb4d6a43ae62bf90e5c5",
    "signature": "0x1b2f08878f00fa70538bd9b37c01634e1ae2accf1b4f10347ceae3bb5737954b41b26d6dfd41d6ddefb40e52f2b656d5882421ab9457e7d87c80d930805fb43b1c",
    "signer": "0x6B4974dB68C1c5d5ccdF369f59B6F3D0843Bd980",
    "userId": "117114262"
  }
}