{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303084",
    "entityType": "User",
    "nonce": "0x6ea547ea8d9ab9227c00c48c7e7eceab751d0b3c44b563f28ce7917915ee1a2a",
    "signature": "0x0c0e95efcb29c8993a6b0fc6fbcaad4c746284b0b84b5748fcb6a1759df8c3b96a601a034b3cf7c922d00e98a806846f37c48365ef80ab26cf29e7d5f45e2f431b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}