{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333145",
    "entityType": "User",
    "nonce": "0x230953df29244fed9af3229e480bb7368284d400bb0cb86f1065f9e342fcdfda",
    "signature": "0x38fa0321436b9a28befbe58f798417d8f00d6bd7bfeac0b62caa941932c2436e6e6270a2974e9fb4b75a4887c5e88fdeccbcecf54cfec9b60e75e9f83b3d88761b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}