{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xed3b10aa8a0a5b2029b67b90cca5e50d3c95e02448ec58d61d4ff491aeef88c7",
    "signature": "0xa97d353f2947a8254eddd7c32b299a7ccc57d2abec44534bb26d3079f51172c40ccc99da66c59e900687606d2692814c07df94d026c1e83cc11dabdf7716c0731c",
    "signer": "0x8621f1bc2d21D4C5Dc82090Af12F8DA289cc1100",
    "userId": "15990581"
  }
}