{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945653761",
    "entityType": "User",
    "nonce": "0x017b7a75d0c28991d23bf7aee87ffc14e2d40dea302eff3f49befdb2ca85b20a",
    "signature": "0xe2d965cd15be960edbc2a585e7f79ed1daa2b8fec3e4bdb71bf91e18840fe309702945cc0ee55bc7c385a09f3dfc29a955a3b7fe0875c76c3bebc194db629a081c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}