{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0x1f3232cdb45684447a1e91451204da40fb7876ed5c4b37c746ed2232beb769db",
    "signature": "0x60ae466769f200dc3ebf3ff7f3d5673c9225f6f108fd4d080539f7072e6ec8347aee02035d341dbf517f67199431806c43759b9426c92dbc83d2e5252105f4071b",
    "signer": "0x74Cfba397474D1C8E5568957E9684113ad5A2Bd8",
    "userId": "576874887"
  }
}