{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0be76801910ccf174fd1abfc3c9ea0c323f6a8c945efa392e62cbd293ad0f5f",
    "signature": "0x9b172caf95a986a2cc2f7b052f0aaa9a5f7b0cdf3ded2e9ccc78515a971e55a33f91b926f780389e46fe9ab4c0d62a1e093dcddbedcab6f39620cd93be9131151b",
    "signer": "0x55ADD358aa95419E72E26Ef1469945773C7615EE",
    "userId": "330409911"
  }
}