{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398253",
    "entityType": "User",
    "nonce": "0x9967703b39622a129b3e580aa102e581639941dba3a6e996b434964ca1aa4b09",
    "signature": "0x601668fd4493d86bcd1c5efba47bd8e23ea27a812f922dd5937f8550984a94441029ac56dd57d472aa721208677053d0e996e71c0d44cfe379ba51a3d5f243df1c",
    "signer": "0x63762Ba099c2247aD3755af8aCb1d62705f0D5CC",
    "userId": "851444561"
  }
}