{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970214396",
    "entityType": "User",
    "nonce": "0xb911b478140d02fc3b4a3e921e81e69f95440e1509fa71752ceb9232958bd73f",
    "signature": "0x8a3c4534c14348641559f46078d37ca8ea29f5fd46a5aae9eb16c76bf2828e4a2d9e2ee1345ea0eb4f1e22dd7c34eb312d02819f2147e0dc62e428d050f2d3b71c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}