{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x112bcbdf8d94272e009b151ee24fb339807291f857987a6dc2ba1d4ce231422c",
    "signature": "0x3d1d08f118d1446a805e453ce1a48a84c5fa5ddf0d663ccd2917538a1fdc4a8f5187515c7f54de8594216eb262787ef9c0029a8ab55810bb8b32181b41352ede1b",
    "signer": "0xE6B5777D1Cda6098756958CaF7bE04Bbfaa01F3E",
    "userId": "37158"
  }
}