{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2195",
    "entityType": "User",
    "nonce": "0x43cf22d1b8c453a984bdead71eba1eb7fd5efb7ae22855ee4f2d0d3404f8958b",
    "signature": "0x55e27d7a72fa4be655bc6616e91a594aebe5235cc3575ff81bf13b7c04bf2c8428ac534e115f440f58adc82bd1395303ec9a148420aefd9921349765ba4b34dd1b",
    "signer": "0xA26eB38Fd507196cBeD68d81865Da73cecE6e8B6",
    "userId": "514933273"
  }
}