{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "292153",
    "entityType": "User",
    "nonce": "0xa66c12c0c916092819e105b118538661f65ecbfa3ba310e78b6149c6d8626044",
    "signature": "0xaf095dc15b83afa42e6460c289a86b86a2da62957734ce4e78865b7f669fefac328ba3b8242cda3c61f4307592ae35c0397bec2e70757a7f1e3e697ee25eb1511b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}