{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "575842226",
    "entityType": "User",
    "nonce": "0x28cac923a5ba891174ca267a202bd9f9102a6f547526ba0231ab640a913501e8",
    "signature": "0x4f9973f4f91304d773e8955418aa2f8b4622d368a8de3c998cc4ad295c25f13b033490a675cc59bf3e05756152e21a17280d0eed101dc3d9215371dfe70ab1c91c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}