{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5443c1d2580453ea7b8441e73358da4bda04be8bfa374fffcf291c87b56d536a",
    "signature": "0x4217f442a62be70cfb2996caee6d0920f4b80cc1054c9345dbd7dbb9209206a976f8b17a26349c050edddac92af3d0dadb7a85b59727164370fd3e06d0f781f81b",
    "signer": "0x6A04f796d3FE3fF8FcDf6F829C26158C3b6253Bb",
    "userId": "67092615"
  }
}