{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x3e2e7073bd81fc8be79ba1685d6a1a217c68f1e3d08a38689257186e988b1c43",
    "signature": "0x9991ac1e34df9a27a4dcad28c465efcd71a94eb13a282ecf7fa4232c6b61039940a3653c60a31ddce2ef8b2230e05d189f15ac748557d7f96a201cb0f636bd481b",
    "signer": "0xC6B31Fb8dfcaC5630f010dD4fBaD97fdbE8F05eE",
    "userId": "722423963"
  }
}