{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x23a864896937a65399c300cb41f1255d39f928319e7014bc85b39c6e6bf9fd85",
    "signature": "0x8b1d0e66246ac24efcab5e38bddc77a144dba40da421a6614f0c7d6c2bc96f1b251ef9a80559263b71fc723ede94221069e5ab2d91d35ff3e224f80b644d96f01b",
    "signer": "0xD2Aac9AfBCCCD7fe1cE86a4b23E8e304cBb38aD3",
    "userId": "472132674"
  }
}