{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307482",
    "entityType": "User",
    "nonce": "0xd9caf8c9e391cbfba77ed3d7659ae5ea0cf2ccaadd5ad2429bf3940cf8fff17b",
    "signature": "0xa79226f0bf78d37c6cc97cd50d885b2d03b381fb1a4360688a0893c03aa983f179a4926a90b178f08565f762efb1b1e72f68861658819b10d0305c5174780c131c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}