{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7f95d55ea9082bfc2a06b8c68d60a816d57079f66e678743d8065b8f811aa33d",
    "signature": "0x04f36648ce119090d08f163dd407097a55fa5a7a1562554a42b5b6f547ebb8f670405de7b7d5faf6b3d706890def95a683bdf578c6d6e4b1e1f17b8b3f869d431c",
    "signer": "0x724f104955e3ee478470AAE7091E8d47E86253B5",
    "userId": "828152909"
  }
}