{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "685057500",
    "entityType": "User",
    "nonce": "0x2c0d5e5d739ac28457cbe07e2986ddba709c5feb87a9b258ca3acaa038b2303f",
    "signature": "0xec5b54b0333a1a86e7daf6bdb69fca562e9346a747d13db0398773a91cf0fc2826244f38c0aff7fd99ff0d3eaf549ed2f30ecfee0941909a68d7c0f32a0ea3971b",
    "signer": "0xCCA88a6013df58bb68F420Ed2f4a3d2ac0C7405A",
    "userId": "322306"
  }
}