{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175067",
    "entityType": "User",
    "nonce": "0x3784902fbcf22cf13de164f22c1e8ecdbe29c085c12f47b7a85533739d767f4b",
    "signature": "0x7b6e2acc2eb9606ad066b5bd79ff73ebcdc3d91a1bdcaa76ca48c33acd7f8a97774c947b9c473fd70980a4b979804536b0e54e27376c8c2eae55b1d10138f4221b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}