{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317191113",
    "entityType": "User",
    "nonce": "0x17bf87751ce8c3cdb83a8e084cad6553ec03b2f157ee69b0c6704b17b6ed2e5a",
    "signature": "0x0e394934f1ee686d5e190f9b54566ffeba907a49a8d22445ae4fc071c9b30626496fd2560e304c2a83e44a28f7a640de9fedf1d3e7ae39623af29354c70fe25e1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}