{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104921",
    "entityType": "User",
    "nonce": "0xb20b581037ca9820174541d717a8ef561270a18a8019185c3fb16e89e3020b66",
    "signature": "0xee0776c8b0b41afd15b16338e93a9ff65a651a6aab35dc1525441ade827708a75ae6b00d0065b3b1a69bf24a6216782b02e3402c5a8c4971212b9c4570220f951b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}