{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x56ce8940431e66590621197b21ebd59e8b434b8e2b4e0345113345f6b03f0a86",
    "signature": "0xcb28afecceb49af0ab104ffa9d2d5793ba4b3c390cabc1d8439085546712e53c7cebbc7e7536503b538a1c7799eff1260780e9042ead75f93ec64bf757a5d05e1c",
    "signer": "0x4d84865eC9840b029213f7661b90599431ed21C3",
    "userId": "477260546"
  }
}