{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "975661020",
    "entityType": "User",
    "nonce": "0x7db939e42573a542d405b96eb43f9a55ac7d40c0dc290c0ce3fab9b5330f3dbb",
    "signature": "0x0cd44a60c99ed2a6b840d24b13545b1637e9d8c765ea9c73cf1319b5e6d67bde22811c4d6892d4d1e60ec07e398a2347de8a7995fc25b689901912355bf09b171b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}