{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "251522225",
    "entityType": "User",
    "nonce": "0x3edb342e3c89f83d98f338deec2ef832e631356b7dcacfcf1982cb1233298e55",
    "signature": "0x7227771d03b6a024fc071f461065c6291ad00aca35e2e06a70d47183f9b359b860c74fb02318c9430bf747d3b9b46549306d7a4284ca1034f9c6ce37e3b0d00b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}