{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16326",
    "entityType": "User",
    "nonce": "0x81c97079c3af8e7fec0daaec72f2bfa0b68c60ecc6a7c30b770a02f30491f584",
    "signature": "0x1522454fc26c14ef557303055b1b81ef8e258a4f81246ee65385eec7428ebfcd5426d5cbdaeb972084bda158e994e6db1e4ab81bfafedd38f03fc55de2ad4e971b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}