{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0x6e90d04b11f640bff826723f48666616076f2029f543675ddbfba4e98324cb03",
    "signature": "0x993ae95dce1220f6a07cded7bbc0ea00ca0516a8f163aa3d9da62e66a7a031814c83e42596faf1176c0b45e597936b53ff482c30fc9a78d1a1ddba74cf009e381b",
    "signer": "0x44567269b2165376Bd13d6bECFDE4A02F3ef59AD",
    "userId": "49012201"
  }
}