{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11399",
    "entityType": "User",
    "nonce": "0x4e98de1d0385f483c1ca5b8ae48e727fd38129162a2f0e5d23dd9dd456fbf899",
    "signature": "0x62d37596c665009808a0baebaf06b8ec99edd70d1f89edaf5ce323698088c516710f7533fb67840dd05cd200ca44d5146336a4a75a364693373d585ea51e016a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}