{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28142",
    "entityType": "User",
    "nonce": "0x3c2fa84385ae634ff28218ab5eae09d48a8ecd05a26a182797e51381c4131028",
    "signature": "0x03119d46316611fa4bdfc06909dd9baaf944fe902d05f720f0b6beb33345b1750c3c327d48b7dc8f0ffe350ff286d15b2b21b2930f4ff16b5efa76e2b016881a1b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}