{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9962",
    "entityType": "User",
    "nonce": "0x6f8523fa40efdc0d312c289c83443e4f7958d3de7b07c28cb0ff8b571e6ebdd4",
    "signature": "0x1b3e4146804774a94d45b35f93dca1aa6f6780a5330d284f4dfdb0c5dab3ec38161022ccaef9cb743411a066aae560c68b464001f71e38b10da6bee3db3b29301b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}