{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10431",
    "entityType": "User",
    "nonce": "0x59a8e46fc97a6c3492dd645ed4eaeea79287f5de24c3115f52005e70ca2b8df5",
    "signature": "0xd4984116074173ea37e547b7e30a53eee5dcdb7c376cb2e8ab9893504838eb19383667639d4db6ef6f3d99907be1b04339bbcab708c4a7ca8dcd092a9a6ca9e91c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}