{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "469204990",
    "entityType": "User",
    "nonce": "0x72d15fa778e69ebc12b970d40778e9d052039577dc2243a433dc7c5d66f98c58",
    "signature": "0xdc75280741bcbca0787544eb0c595adf0b1d2d2b0f4ee378c0388a4b3586fc702015a8c313837336f267f8f8d585180a4c841207959e9a522de4597f3781e6a11c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}