{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387358",
    "entityType": "User",
    "nonce": "0x864fd6f08de51c70c25b427c4ceae83d42a322d930ba7bdfe12eb1249076a864",
    "signature": "0x301e346add4bc1a39e4a6e2dc493da4b7998c82b6b2a96895513f47a4b19a4ec24e65649e415a8c70732534df2905f507027d6ba470a9d6f83d75cc587a5290d1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}