{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487028014",
    "entityType": "User",
    "nonce": "0x7c73859e6f98f4bb5973808827a6207440a0d7800dd9f1b3cd07dbdbad1d1fca",
    "signature": "0x3f0242ce03e886175e6e9ad27f81791b219a35f64a1ffcb85ab63819e18bfa4758bfff09da716aab3335a34ff7b563cdb586aea6800bab1e4f1325c25b0d2a0e1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}