{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0x2e1e0b7febd3a0da9911492395d5839f23348f200d752388b6504f43eae9ea7a",
    "signature": "0x4b888e0a400ab18150d23f1063db0b937bdc96f47ac2af9eabac2ca3b07134d676b00b23a34c88fa23f1efbdab2637e14bb3b9757351431c1027155cffa621a11c",
    "signer": "0x476B02E0417232e36631C72A4E425F63ffF1D463",
    "userId": "264035298"
  }
}