{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x54ddb4b4e18abb81e4cbc15d63934c5a285c23a011246e70e4f19ad3d91707bc",
    "signature": "0x96f457c054a14af6f7e616e95c947d803b6bb3a73b4b420740782a712d1808943cc68264f4226cc1f064d6eb702d96d795df654981fcf2fd58db9665b57335151c",
    "signer": "0x9651A4Aa1CCFFF6542777B00aC51EFFF1e0A1c40",
    "userId": "325907360"
  }
}