{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f0a2291b50e83da8ba7f822b2f2b7bd3b98ceb375682eb575a76d0dcfabfa41",
    "signature": "0x59718fa57e3a191f576a4e4721ce15d3dee8a0eec8c6de4196505274caf0a5b9136e84b79bb655d9649b65246089b86cd2f7bbe8d3c60e84029f3a296a7cfb151c",
    "signer": "0x76ba12AFF102385Ed9B81A12b7A4240688Bd7476",
    "userId": "655513271"
  }
}