{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "909603442",
    "entityType": "User",
    "nonce": "0x49e379c96d38ea7fffb119fc70698d41bb55a6c794ef34b7fd1d038b158b2c8e",
    "signature": "0x30e65791855049bd583a8d65565238e55919f8e9f0ca0e0fcba014d33ad19848010e2ebca010178721021e3b98ffe56f26edfc8be259d38bcd04202d106a0bc31b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}