{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258474",
    "entityType": "User",
    "nonce": "0xc7d735600c202b7c461f680129517f69dd76ced231b247c1380e310b16d38505",
    "signature": "0x7d04c8be8f917e3cfdaabad0b971984d429bf189c6304b6977628aacb46bcdd751242f11daf2673d1b8acf91903ffc99b2cc8e971da27bc3668d555d7b46a7b61c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}