{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48247",
    "entityType": "User",
    "nonce": "0x5fd280432310135ec9ccd7112e0bfd1ff78dce3111209b0ac21b72b58bd2dc9e",
    "signature": "0x9e96f3e93b05c9210327fe42656a545bc20dd6d7890f345e3064ead0546c3f2228e2657ddd70e7c4515e0fe122d88658c9300431d9f3b90ab2fffe0443a535641c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}