{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "985168351",
    "entityType": "User",
    "nonce": "0x53f2f4e9bdb19a7b508542db004e0b9df37b782fe0ed718e14601d0ad8f9714b",
    "signature": "0x2fd0c209e4daaea40e12548d3b8a19945d6500238f0ad107c37662fb3d47d20c4a29e3df25d0ff0aa7a9f70c720ddda471d3bdfa64c07d04b528698dc8ecf44a1b",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}