{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18140",
    "entityType": "User",
    "nonce": "0x177c6606876babca7d29b97f377f3962a5dd4aa1d80d8f56b2fc677264317789",
    "signature": "0xfed1a7af9fedaca6c24aa91e56a1edefb1c7407fa67565481dcac2c0fbe4b1450866b1b235a5d4a74cc556ded3717437c8daa3e9a680845e354557e202e725be1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}