{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2fa08539c3f1fbc46d5a90f36bfd6579131d181bd272d0cb573548f02a320e11",
    "signature": "0x32124899390a9871c3c822c22fb06f55a1ada66447570ae1654236455359383b3ec00a8a1bbe956f1095444ae38a215bb2aa2ad193460ba57fb2ed26c27eab921b",
    "signer": "0x13411c5F55F3ACc440Ad85C778c8d51909bCBf4b",
    "userId": "612429029"
  }
}