{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55991",
    "entityType": "User",
    "nonce": "0x358d70ac7e0cda70e5797435d3bdb51b1e3876ba115856e24e058156a667a6db",
    "signature": "0xa64953600cad8c522ed5fa7f394d0b864717a43372de02fcfcdb4579c78c95037d3ce8bc24ab5775596e618e10536f83d4e79c36d3306ffa82e5e817bbaf8b041c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}