{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5014",
    "entityType": "User",
    "nonce": "0xee6c804878e6ae810ef65230d5f07a805749b348a29c2a1790c8423eabb88c48",
    "signature": "0xb15fbeaa810005b25f2c7802004b5667b93a42d542c5caafa813c40d7f8ab0ba7e35323742628364d79b62a0d696162195a203700d93d22223c5f4b06956dad01b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}