{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x7f60b25deddd613c3cdd0fb8580e76798ff857ae409ef0d3af02366171a4aec3",
    "signature": "0x90be2c320df96bf17105669f379db828363ca528111f41e6e2d53d6e2d5ee33f5b82d1c5f87bd0e97f2d8988dc7f5c1e8d4bfb18014e72c4577c3700a2a3f8301c",
    "signer": "0x1EeF7f4505C388ca4a4B9A8fC01FcFa7c805D3c5",
    "userId": "17766667"
  }
}