{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329435",
    "entityType": "User",
    "nonce": "0xdf50dfaaa54a4df9d148247c087c1978b2143354475c4491217f8c4a9c50d267",
    "signature": "0xf34758cf1904ec8a9bc94cbcdad5327f8763f6ef32427c6ef52928938546f58d5e47e20bbb4fe3d08bb9962cb2efa454cb6e92df03696ceae8367aaabc1e0e5b1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}