{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781151",
    "entityType": "User",
    "nonce": "0x7f367e40f5a530b0dc53ad0d908bc7b4d2d9177548012688f6add4bb338c2957",
    "signature": "0xa8c6191fc9c0a279cbb4448da725c0886ad8444c39c160834628a9d849386b9f242172129c080790fe0c1389e90914b87ab3a260be1c6515cf17b4050f3ad3381c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}