{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x639e05a59a0822e0869c886be1b27bfaab2b799f6f6c252858a071c57a4f1359",
    "signature": "0xb7105a6579996beda8f07a5c1c1f7684f3483afb74d70012ababed805c020d7455acbb933523a278fd61842062068dcef9c7e31b61be6f7dd43dce83f9e0608c1b",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}