{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209649",
    "entityType": "User",
    "nonce": "0x8551a9eaaee8e3b6567bb62b7eef75b95bf75081a7e5f2f4d0461e28a95354d8",
    "signature": "0xa9d7ffe0c94b911c78cf1e9fb60463d3af2187a69918d62916e718161cc513d02b9fe489cdd5bd71f28321d6e8717b6a4490ecdf16a238c165235cc84a9797921b",
    "signer": "0x1E097836b696E63387992B7402dCcEF7842F477a",
    "userId": "525334885"
  }
}