{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "773429398",
    "entityType": "User",
    "nonce": "0x69d7ddba2a013ef6fca11d60bb45393eee9bcd60dbcf231055b1b6c67bc36930",
    "signature": "0xb7400b81ddb784141d4ce9038cb48daa69912ad32ccafe1f5e15c2569d25be2302b424f3a800acfd4fa900a4d9747fe09f00df0493654b268daa23c4d0e8c07b1c",
    "signer": "0x8d9D00A94c3B1C9992e3CA4386AbBC6345B2E876",
    "userId": "396658415"
  }
}