{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12",
    "entityType": "User",
    "nonce": "0x93908ab9a6898186c9235481584a932e0a72616540c95a82f71520a172520756",
    "signature": "0xc6497036030b8eca254cd56a3f68cf39dc4755fab26f8d22122077a81652cb87501f2a466a5933e5c74b2c0c7a3349bc70144ce22260a2a7f0b53fbfea9c6ce91c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}