{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "958053535",
    "entityType": "User",
    "nonce": "0x8e7d0f5bccd0dfd5e763498ca94a219ac0dba5f5287f379cf506be80e4fb1c9a",
    "signature": "0xaa752eaa7128418199595f4e47e1f9252227c2bd73c1e141ef2d5034e12b1d3e5944633b50528a30c8b416f9a21f1f8af1383b272f4501087cfead59cecd17b91c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}