{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xba49869150ce89c64fc107da410baa65473dff5a3f4f234cb4c71470d9585d53",
    "signature": "0xc610f7e886c41bf11fdcfb1086efe70b7d50df92545fc3aa025030fa75e1023b769ad9060ba62c8b10ae70b87957a1b4a219822df8e65493d9ea556aa34fe4331c",
    "signer": "0x5CF8E6b23746115625f0Ef4B24FB22d51ad781eb",
    "userId": "494752038"
  }
}