{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715573876",
    "entityType": "User",
    "nonce": "0x7e0290d6a9e4fa498c7fe7d6305ccf87776fa1004d3be7b3047c05f3afb3ebf0",
    "signature": "0xd3ea5f5bc0c0db7f1c4c3506d099b4bb45e8d67651fa0cd18b23c6feeaf096ca18918b99920e78f108cf79416371dd863645e21b1a31e4f79a13f9bf953504b91b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}