{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7f98c3204e71c0b76325c2e93ef86888cb30099a076f4b6b44820aa3b81de86",
    "signature": "0x2cd4e07c43f74b5b427aeb33a858ec0c7f199d3b5f0d3cd9b27e6a12f47473844fe1fe5bfbfb3a530d41fb7495f18998febce7582789ecbb5e8140666cb692d41c",
    "signer": "0xD11E60b78D349bEEF08c055Fb75986129acF601B",
    "userId": "238411250"
  }
}