{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1705654",
    "entityType": "User",
    "nonce": "0x3f8450b155d1bcaea24f18035c3815849adc7640b659e3dbd9a7eea1420c67be",
    "signature": "0xa646dac41cf886bf4706ee937054c3ed58a9886b821ad18cf68d327db94bd39c71973d02f78b027faf2956cea1c5a80022fc2f9236cb657d3eb167ba4586e2b61b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}