{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211413966",
    "entityType": "User",
    "nonce": "0x66faa019cc0a40fa5bc3dad4ab2f847353781d7445cd7de1d71c94712e0d86f6",
    "signature": "0x0b28b93f134792644b9028689e918668bc98d04afe96bd34953d9a1424618afc638e7c117c8b8e1f741775556925964dd959f802a5737838f95cdb45082a33f51b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}