{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3460605",
    "entityType": "User",
    "nonce": "0x9cc44ef39af7ac11d215d2e40bb508862e32d11b02b9bbdb7937cd49a666c541",
    "signature": "0x608e9843462fe49e1659d7ec8026139f7ab9f551c177d09efa399970b14d73ea5704e5470520637a318400b9e2df6ce3c32019d29937f61ef15176b1fce13c261c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}