{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xd8a5793e7aef134a769c7ce7956a0208fc0518e26ad88037380c118850909058",
    "signature": "0x3644db2d6f3c958a26b5ec5d4944a7a43123ec1905b5a5123ad7234a2ec392e730fba68385b69021931167dd73692c6401123fe4e62166a68e8384d53ed2b06d1c",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}