{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xb662378e0acc45c374c41d3a912b2bf06217dd2d420f206a9ceccd3c9488464f",
    "signature": "0x973abbc5ae3cef7895526c8347f435157f5881ae8c38ae155578fe9252dd4f717f91dbaa9c26b310f8be2ccaccde87963e1497518a691ad5c5c634c91667b46b1c",
    "signer": "0x7094144C776594790B5E922D084562dB60549BD8",
    "userId": "602217700"
  }
}