{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1322149",
    "entityType": "User",
    "nonce": "0x997e63668a8880db0349569f80948830975c81f5e43539c56fe5be21f3c3d081",
    "signature": "0xfadcc1ddeedb9b93fd21b0dca387216759d017976c7edf60ffde3eb87d6f59a80f62aaa23bb0ccb208bfb35ff1ea8978e19fb2a5439ad3342654db2672ca38e31c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}