{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x02d45038b013a4008e93f16348b8d466bedc3eb9f0c03f124b09648648016fe6",
    "signature": "0x1205eea571c18b0906c2d1caf972fe2a4cb2b63a380871ab7ac78156ea9c0b5365ce1cd1c70310fbd41fe4f6a61b588926c3e2a0fa893f91bdf972cf371779b11b",
    "signer": "0x5c2e2A73436Afc1110f5020da81CA7f791682E96",
    "userId": "871579076"
  }
}