{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1713713",
    "entityType": "User",
    "nonce": "0x5a452c95ce3642299183a574cf8e776f10893575bf2db505c3627b417f7aa37f",
    "signature": "0x9835d6b9299055f66626951f54f5fce98f2c889bcf17f234b8bd31bc49cddf794c3f0446ed4515ba5e8a4fc33666e06549c97789b815b5ffb1fd01e7db0974c61c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}