{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297541",
    "entityType": "User",
    "nonce": "0x763e6ec3601741bb38c8a24f7cb18b52e11ce2176190331a20ccee66ed9e75f1",
    "signature": "0x978e76ca12d9df1e85cfbb3176f616c946d14f32e7e760f13414de752397444f03303937c6764c2d1d131e75d2bcf0b55fb8b3b0b0f45e626554ea5842459ac21b",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}