{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89919",
    "entityType": "User",
    "nonce": "0x9a725838300c62b345bc93bf7be51f8a24e0376a7cbac6ee0c78b99819a2e984",
    "signature": "0x391fb4ede3e1030bd8f6a4dc1c15507749eda47d5bb41d1bbe3ce00b8f882e150c6afe132646aa65aaaa04c89ae9be6c9eec286a07999d3f39264417840b06f01b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}