{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "254245",
    "entityType": "User",
    "nonce": "0xc7642e7096296771405af704843aab1d502c0848017da3f9740467a0df2cb23f",
    "signature": "0xc706fec359fd6d94e9a918e192ee4d0d10aac19e3b0d8a3c33b23be65b9f01803ffa90315a82c73cddba48040392ad9bc02350bf3ffe2d13d06a5290cdd441471c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}