{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb061c1996fcba567c761a0b5064d9274225b8cb29c04de05befbe75a11696aa2",
    "signature": "0x5d1b1f1229185a5015f3684af169f2341bd232a69a35eb5818f91b797b5e3a7e0e064dab78bfc497c37d21ddca51a06db4c4f484389f0bbd55dcb424a5bee02f1b",
    "signer": "0x8593136Ab24F551bD1dcf6Ee368c598B49FC32Cb",
    "userId": "549997769"
  }
}