{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "718520160",
    "entityType": "User",
    "nonce": "0xd37e3db6d6f01a600d26b1b17e98d844ad06a9afb4e47a1a05616e3a96966fdb",
    "signature": "0xb90983a1d07cc3789ae9c9ca6fe6ef18c08df4b60a42965e3b74ba35659b714477e943718b651b4d0800a92a710377dd31dae036d962cd7e7418ef285da4dee81c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}