{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0xe865759f1124a15d1c85ab34bc703aee7e4b53e12793174324285aff27d1de50",
    "signature": "0xe2b9ad5c9512703b3ffd96db8eb95e0c85b8e1f33508edaa0342d779aad82afe62f1e2dab927bc6caa0f472da02e0a67130dfb2ea7801dd9b77054c74fcae4831c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}