{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1054428",
    "entityType": "User",
    "nonce": "0xa74ce72178a714b97de40a0aba5dea3e69ebaf0f51c3eb95550d3fe9809b6b81",
    "signature": "0x07e9e0d475aeffdbd0f4f4a86ee22f500224d87d96d6627966745261277871d75a3b5b8088df35ef653c1fb04c94757a9af34f84d00cd063ae3ce30c125a2ea41b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}