{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15853",
    "entityType": "User",
    "nonce": "0x8025e1ef8e33b42f471e393a89311c2f90fcb8a975d067bd46e2bce16f6ba8d3",
    "signature": "0x7ee68278c6ce6eb9ee526c9fa2d095f985db82220b3f066a248d1e3e243c2ab674ca9ccd231823a723ffc1682eb80c81b8e3d1dfed63631c206aa21273f6fa461b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}