{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x074e46665ba3f0641220e138586216bd10436e0c6da19bd52437cf5db6315bb7",
    "signature": "0x52f33c03ef3e8e8a3259141b702a2fad07fb4f680350b49ee166300fcac6a7130630a08b8140fa8457e4d38b96701f85070ced3aed2a9702eef008bad4b59b121c",
    "signer": "0xA492D4143308239aD2A3B77AEe3D31D62eDEe716",
    "userId": "485177032"
  }
}