{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0x1ddc868016387e9f3f04242b33dd02865a02ea194fb432583ecd14f3bbf4756a",
    "signature": "0x1097d765f94cea5353d0bd7cdfc1ddc9f25bf2ac183836c5fcc7ff64d51305981924cfac52f36211a4ed92a8bdacc6ec9f2c9ed44171f0512aa4948896812a1c1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}