{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x739cb8a634994d8f45699ee5fde4bdd2f208836418269bd8215a52fe45b7f8cb",
    "signature": "0x542e00c081ab029e73152ba58b379914e6ba4823526d8ddc0dcde52a33be250e23477afa2be3b3c679895a1305e45a4d6dc0634ff4b31e957eb25bd3b13f3ea11c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}