{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0596199a1f071de9b774d268c9e7cb1e5eda05218fb72c39ce8cf859e09d06d8",
    "signature": "0xac888bbd6f4ceadf007a5fcf70a0216b28e2f0778336ed6a4aaacbdbc76fcccc1d57db40c0ac93829b52f642a356067d609f4a96ce0c9296b25f2276c2528b081c",
    "signer": "0x7dbBa88fc065E0aCdfbcD2D8C38eCc191Fd117C1",
    "userId": "420727240"
  }
}