{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "425533161",
    "entityType": "User",
    "nonce": "0xc7b0fcae1c21f415b932928d1f2cf532022fb488338d7df7ad2ceef490f30a28",
    "signature": "0xe038d1bb7c51973295b14381b51bec4dec960f565f8f503d9cf0ba07dba36ae20110db39230f75e89470a907e41a31ae38ae164f3dc4151d8b034264993f4cc11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}