{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xec9a22f59dabdfbba2397ee002685a04d0a642873ac30897e0a80140f0b99ef4",
    "signature": "0x939e7b07840cf99fb9ddf3644bcb43cb39b845461bdb4de31e26198e2382464f07ec2716b8e037ac1f8ea70e3f0dbd1c0ba9d4a37849fb11a29fff4d182040a71c",
    "signer": "0x709FD3e3ad08B3d3726132D2d40e0E6d92d91575",
    "userId": "25596281"
  }
}