{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1545055",
    "entityType": "User",
    "nonce": "0x28a62572aad985747d00faa7eaa8d6c233ec459598d453937d7101862dda74f0",
    "signature": "0x5c3208acef6c58f396e9445708c3438b9183b2e5f117ff1e603253127713f12575a0a2c29abefd472f1b562a8598e8b114de16abacbcff62ebe53cc7ba2b65391b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}