{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240389",
    "entityType": "User",
    "nonce": "0x30f11b843bde844ca774b6a9392cdbf6409a3dd8470e07e2a83969d5ffb92eca",
    "signature": "0xee9620f151a62ebb5a8c3c8076eef8020fba50a9a8d604a2ecc998a0cd0f6e7265c09998f559e46bcec908feba47bf8fb3942cc220ee67be68452f354bf502301c",
    "signer": "0xABa14D3FeF65E9Dd6955882a8D3DaD12BFE4837b",
    "userId": "158946676"
  }
}