{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdd96cbb68544a641dbca4b1ae7b46516e4df5c5ecfa389f280da7722766f07c7",
    "signature": "0xff20522e16753771447751366393787da1046ba3a3ddc8a3e8c23a235ebe1f395a2771265110dc576fb6ed685f19d3955a725d9955c8d9c739c03f486ff5534a1c",
    "signer": "0x68Dfcf88F0Fcb3A379542CC267B2C1c6469d93e9",
    "userId": "13930956"
  }
}