{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x76775f8f71006b0b6f21d1e8515e37d40eff113989cf8a8b0a087bcb06373b9b",
    "signature": "0xf64a63b8d3a641f77972c804453794260502508ac660a0af0a3ae3b0082ec1cb22f390890cc6af5685b8a90e1c5a9aa2edad8eafe4f9d7666c24c8a193c829ce1c",
    "signer": "0x5E915A4D9D9cb7A5693e7CFA960376B24A181Ae1",
    "userId": "864558519"
  }
}