{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66464",
    "entityType": "User",
    "nonce": "0xc40a80ec956f6f2e3b202b3248c346b9bba25d30c6b2bb5dc45cae69699b165e",
    "signature": "0x13ea414e21195061fec8674cab5d0d2f6f7cdd9a45c0fb78cb72ea9b5fee10080ae6dad2d40befb2e303d76b514349e1a2227f58e85aa68dbd58601a24de24b41c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}