{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "636236864",
    "entityType": "User",
    "nonce": "0x00f8105be5aee23619e840b92a62a09d1e42139cd6733d1e40acf2b95d371c43",
    "signature": "0xafdccc894b5e6b4efb68eef051d38b18af2dd2ce87a9e3ceaf30d5578c9896af7a22d8d0bcbb16029964d9e1deed14a900783f246ed997a2359bf18c401b95561c",
    "signer": "0x721f076D6fdC57634d612324093cA69B47866867",
    "userId": "303348966"
  }
}