{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa7ffab32231682af60eb870049d505598e54b5c68fa6eca919830721b6ac469a",
    "signature": "0x4bbacebbed56c73be3638a854f8ca1387d37bad59298a376ff5778a4e90b87942496aa316090ed2be8480ddd3b54c799dadb64ac756c6a735518d2b17e6bfe211b",
    "signer": "0x69a3602BBdDb99584889e5Fb9f48536e32560104",
    "userId": "453199874"
  }
}