{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51154",
    "entityType": "User",
    "nonce": "0x1335e061a33e535a0ffa5350d97f2fb8a923e16a995d21077631df0c7e8cb464",
    "signature": "0xc7f14ca92b214b484d7ec287ab95e561c800219d9bc6724eec15eb7abb2e1f1002c6be14d2377e4535c5c97cf3ddc624e89ccb1cd308d72632e37e1e770e20d41b",
    "signer": "0x884490CFa947bC5C5d41834F53666866b78D19d6",
    "userId": "475900419"
  }
}