{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220068",
    "entityType": "User",
    "nonce": "0xa64c670035c069a0aa50810ca081b654591a876892d4964e5a66b16ebf18c98e",
    "signature": "0xa891b9fe9cb0a3cd66f22e20313a81d8f5f2a76de76d1468d3a93aa0dc6fc1c9227c29eda63cc02fc7a1632fa831cf33c9d0c20f71b359241ed8d6438db73ba91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}