{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea63ac25dd16bd85c65815fd47874ee29e7accbbd462bdb15318e80059dc8704",
    "signature": "0x49d0db701074cee321d67914a0ff08a97da1dc114da1c72ef6b7291d454e21e51d6c6ecc8d6b49c77be1f1c8a88524d9f490c1aed6a1dcf1e1533872f112ec581b",
    "signer": "0xBFA17a1D288f5C991Cca7e5BF2c5209E0b8E57f6",
    "userId": "495507882"
  }
}