{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x7f675362e612048d3c4c83f55926d69e2546cd9d3e8f12f1cb227725e905172b",
    "signature": "0x8f9dc42b8bcedc2853abc470b0616d8cda8943de68f1a7275fb35d9480f7c48e1e6fb1c4f90e5827326a5b449fd059e375ade48341d2019f4fb414487f37da7e1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}