{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381571423",
    "entityType": "User",
    "nonce": "0x4bc20580a02d6e70e20641e9c17909e4347175eb0fe1df9539d5bf8d9c021986",
    "signature": "0x506e182557b68540e0de06684795bbfe469207c9b3c33986a61ab9bc7974eb5333aeb4901d0299ead6b51c0b6a172ddef70e16600e983ec3ca6154b0104f8d4a1b",
    "signer": "0xaf2637b4F9b0E31ccb017F2212b197bC99057B8d",
    "userId": "352445"
  }
}