{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "710337",
    "entityType": "User",
    "nonce": "0xa54ecc56cad3ced44501368100ee528a2d5327e8951e3069f688852661093542",
    "signature": "0x8a4d129cb4dd00ba94a9bb13245cdb523be98ca221d58fb68bff67e8350d8db96da0640a990dd7b7c31bfc7956e67ff12cf7c43050df255c8b6e077d236b22ad1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}