{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "321696490",
    "entityType": "User",
    "nonce": "0x71f8993f0093b14f0644c55580ecc9587754d8b069d7493e2732269925f13c96",
    "signature": "0x10705dee006a2490f97b69f2cfc41c18e7013359d2cc72469b486c3ffed8f78d4baa125238ab7127169a506d571d2d913063ec1e90ca4e92d449f609d95df67e1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}