{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106406",
    "entityType": "User",
    "nonce": "0x7dc66e6adf387ab68df771457d2cd3f412a709c4cc3db5f7fab39b900c24c600",
    "signature": "0x68a3eda507854383eb0b09a5d902ecf14cf33774f9d42a54ec7908edfa4092e96d5a6916c9ede0ea8e9485c26c4328a8e9315c69dff65798b72a25a7d310dd491b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}