{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x3120f84e08aa82fc1156d1daf6cf8c5e8116cd9ac8d94baf943495162b92ce7a",
    "signature": "0x11427b3ae74e56390812eefa698da20bf5d60cd0060139dd8b3a98b680aa309704d80da90a05e9be01d61f879caccee873ffb34ac513e92eb8f00c4317d335381c",
    "signer": "0x635a32c502d056dd6e3f4aC1eb15Fb0d90a88171",
    "userId": "1640466"
  }
}