{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14971",
    "entityType": "User",
    "nonce": "0xc5f6a86144365937fbd136239f63e66a3f248e2656202d4b7bf6f78fd88973c1",
    "signature": "0xf5ebd063f9d0416e7b61c8b17c6d61278898666ceaf92d1b4a87354fdda64b0257162a938aaf8c26fe3c86856468b103f014bd127dd81d0fe1ad22967ed0153c1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}