{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4ceb860f7bc595efe933adadd86a46f35eed456b15add2e26aae5f868ca22662",
    "signature": "0xf166064ac8f31f7ac288fcfd2e7957139699039c335a2dac1ef6343b4bb02f1f1d00da2ddb912f94fb64e7356e06f37f2f7c240e15fc8e7384761ecceea189c81b",
    "signer": "0x1495E84D34bBAa11b7435Cd8b0f64d9335C6d4ae",
    "userId": "551829342"
  }
}