{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x7f5825e3caaf48a1036e4113ebabd9ad79e8507ba397a19582244121f52e8d3c",
    "signature": "0xbf700d77adbe4a2dd2a4667c8462e16ca6a37b9c43b6ef3c28c760eed7e8c5a90d14a1b3b2ee2d669fc9560b8de6be65852a80855a935e4b20978d2f30e7d3391b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}