{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74742",
    "entityType": "User",
    "nonce": "0xc858f6719b655efb9ebea02c78c659dd17735a44a920ab432b55f22376283d06",
    "signature": "0x8f2de5c98d6eea05d32b7aaba7e90ae2bb770de96f94081731a627ee9ce3201f111bfa51ff6c6bb68d3842dfbd0b0fc6b00ee58e5c07c3f88fee7b88de7951b31b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}