{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216497",
    "entityType": "User",
    "nonce": "0x95940f485e8a6c134a0b478d455dd2b4b556cf352e0e32abd566292d6bf9fd03",
    "signature": "0x39c3fd103a8338c5c402c0fe0ef14341518b72ea394f4bd9c0920d15da73cc1d10cfd07b9858df1b8c8d7404df6536cd19809e1f093b3fc66885aaa76800a2fa1b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}