{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x35413b89e993e6265de91832c69164022ef1c0f08c8984912f5815fc5fabf414",
    "signature": "0x340d965ccf5e92444a1b548b7e52439c9321134c5cf543703a7a358a05840bd64a585bb2da537b0984091ec19cbbe22a41b2bb18363f351cef59dcb8504085631c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}