{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53010",
    "entityType": "User",
    "nonce": "0x1595f7a5a7e8d5aed1ab127d7fa1eaa6703cc3f9b8997eb248730c80c16601a8",
    "signature": "0xc5fa007e3b293143ccffdf32afdb26dec38b4b1e5f9a76b5899be1a6ca1e754e5e2dcb2e2203406755cfceea98ff3c0631e3e3196dee4d4bd458b13a62c6961a1b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}