{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "511280302",
    "entityType": "User",
    "nonce": "0xd7235bc120695f7fe8b2326b9915993565195a880ff079c37ced0f470652c35a",
    "signature": "0xdb89e7a1f335c2d771bbaa1a37bebd6cdcb828451d644c7ba87eac75d3f316517c3aeb9f7e25d8090ae79bb316250a42c76bda26d43e1d5ba40e173782faecbb1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}