{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x56f00eab2fed0db3a58274ec03082fc8a05cb7234da22c18cccde79a5f68a89b",
    "signature": "0xbcb0a23153ded466ce10b9740f5e75b854061fa8b46ac115fe5f40cd94413eee5f198c1c8f09ee239a7fc431b37a4e01cb8ef071171435b932859c34adfee4c91b",
    "signer": "0x20cAE795D2700f9075efF654C51FDD875673Bbb6",
    "userId": "188840731"
  }
}