{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "286591",
    "entityType": "User",
    "nonce": "0x261e199875179452096d811e93c5b6e84da640446c8c008119fdf3846d5373fb",
    "signature": "0xd98db61be82113be0cd1d1ef329cf17c582c29f7a7e37dd378446940a64624122cc09538155297c40e1575ecd27962bdbb96dac87def3286c62bae989aeef8c61c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}