{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa204e9ab1311a7d0b1dcfee629b482b666c66d61e1f4301d921148e48eb1b09a",
    "signature": "0xa680734ae05140200d8959403bcf22b22156577c8b558f9ef7b1ab8738f95f58213e7bbbdc8ecc556dab5af0ae088daafe2fcafd67aec13ca90ae5119defa2e61b",
    "signer": "0xFD01dE3132EdfCD614428f6483157460112f3f4D",
    "userId": "735164915"
  }
}