{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "176938",
    "entityType": "User",
    "nonce": "0x0288e257727fd6a1ea130e0a8db28022cfce87830bcbf9e04542bb6659690d2f",
    "signature": "0x7edfd26760a8e13c6d23bde667fb38cd74b2f73d2a16f7b1c1dc9f5fc5333201374954cf3ae34475ed135f8106804282eb2d96fac666fd3aaa0adcbf0f1ae8201b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}