{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511688",
    "entityType": "User",
    "nonce": "0x02877b1959069c8abe38639b36915105ebf456692fa2a7fe917bda5290891d55",
    "signature": "0x62c8b58d050ea8d4ed88449b3d50f52b6d6978481c2deb255e59628e037223cd3dfb92f72849b9fc7128f3c892b2a6df6cc324c860d966b832db417623c4feb01c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}