{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x098090e495a47226626d59e42730c68e71225329d72d69746fe4eae831810dfd",
    "signature": "0x648e7da2782fda74f50852d88a39290cf8342a1d36ffd4fc2c8cab0cd07db9a46ec34e40678751322c3a90519ea83fd4144215d725480b6a8ff8847d0f5c49141b",
    "signer": "0xD509c0B58dfD221381263B5Ec9Fc1767469D4984",
    "userId": "55293303"
  }
}