{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xdcd9d3a53fe8341d9de6a68ffe75d4a1d4cfdc757e70f679d186ad40cd28eff5",
    "signature": "0x385e31b48cd96de434ce2914caa55fe4b8f22c1a28dbdb919cd4b105e18a43e44c37c7e6cffd811f457bccfea79b60cfc14d6549fd3e359630e941bc1018ebf91c",
    "signer": "0x04466826b559ff734EAe9491Bf4C1a3c2fFBA6a8",
    "userId": "272534777"
  }
}