{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb0cd161cf16d1111028f7391821d18bb1e4024122120b2df2ec5e95190b725bd",
    "signature": "0x31bf70003b8d2f17208df898766ef0a6ded7f98a8852d28480d41d05e93bf262615fff39d9a4c70e7be82a5dec4132c7a2f8cb90bb8bbf95b34862348332d4611c",
    "signer": "0xDcFc9AFDD8FB09fa32d0c5b309c7c0E72Bd8F868",
    "userId": "395235305"
  }
}