{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x45a94e940ecfb62cb22ff09c6438bac4204aa260cccdfeb5b4e571dd813341dd",
    "signature": "0x82242050eeb3836488787d12e5def84d88179d32f064ac0d5dd54eae008f37b1218507984826bf9f62f49b39cf4ae31d6e849873298c16ee0aa6fae9ee8a52421b",
    "signer": "0x9f626266e85130670e9C002080890a798eEF36E4",
    "userId": "649996433"
  }
}