{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40431",
    "entityType": "User",
    "nonce": "0x72d7b962f928fbd38460530e05d5016b3822d6c2f3cb148a8fd891c40fad22f3",
    "signature": "0x17fc81cb1a7a8389f9f1e766569ad166da66f0c515e105dea34a16a5873899a618472cf55349eb3c30ae20cd56bd3e7a8c1e3ae567c69aba2c8f0376571a3d791c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}