{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xab4f3f6c8e119a30979f6fc34298399d2ac573a0af0c43b1a138fbce7b58c475",
    "signature": "0x1935784e2ac2296d1aa9e5f381108838ae152f5d5e5e22396bb8de4916027da67df27bea1770398e5fa7816ea65c0f8fd24973d1ca5c31fe4c66384f82edcdb01b",
    "signer": "0x9b38d62c5f44A4049B41b9c5F568de54EE56fEc6",
    "userId": "205747246"
  }
}