{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8e7e7c359f92e7bc62f28875a52b28382f3bcced99ed4ed3b28046b70b4f4a94",
    "signature": "0xde27b70027174a97a0940b769e82e81b613a851ed0a7bfad3794ae9b91b2153c15837e559c25114189661549a81a2b178f0aa87c6c1cf01413ca76989d14e6091b",
    "signer": "0x188E4f1A49CB14A8e074657a764F5f614329985A",
    "userId": "695296818"
  }
}