{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42607",
    "entityType": "User",
    "nonce": "0xb4a983c5c8156a305d5f3735a347c5aa064e1625a4ab5431ab6a26acca343097",
    "signature": "0x2aa53f07c398ff1f344db76d0809765d563d406f551b7b025de32f4416a2a2ac3c8dd173bb3767702d0a34ce776ba9628d39e53745075aff534fafbc0f22904d1c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}