{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342461",
    "entityType": "User",
    "nonce": "0x1e2f408d43a8237e31b2c301e7280c8e848028111568f726d00a762cf6153c19",
    "signature": "0xa096d979d7f3fe52bda156696836e3af95bf489248ab80b4bc96336e9c4b00eb032065310c617033aadef1ea63c9ab88559613dc55db15d58b84fdf2a19d45bf1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}