{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8d0083758cc37d883a82e37aa18f11dcd44dab66314ffe22a11e9caea31d6add",
    "signature": "0xafa2ee88658733c23112789fb8f288a0722ec99246500ad233f058da95a09f816171954ab7a46a4ee5bcf5b071d37f6412a2bbdc38dfbba5245a7c4f7e04a7cf1b",
    "signer": "0x3aae593151C2D2A71F96C0Ce45e811296a1f58cd",
    "userId": "551271495"
  }
}