{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "338604526",
    "entityType": "User",
    "nonce": "0x2290525324499feb6527646bdf7cb48e8d3576897216f69374db62ea40d10ae6",
    "signature": "0xb1278c3d5b3f50bcd8e9abe0dbba666958e983e599c9f0fb35992de635011eb84429b9015d09e13b3035475384cff1dfba7918c67b5a2d5bd94a88b838011f0e1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}