{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa8ba6b1bc9f9d76f1dadf9d573b096c5b7a5395cbc04c75a09eb2317294d903f",
    "signature": "0x706a01602d7936263c14d8801360ce6f3fe68aceab4706fb2bfa9f2417e280763c7a54a70cecb65b7e02b32bb02f124078eeda253763e83a18fcf43f3c9def811b",
    "signer": "0x647CCcD1748cA92d54c28f3986e321d26dA2Aec5",
    "userId": "350672179"
  }
}