{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd6a45552230daf970e854973d24d827b72b51dc4c18584dfcf92048668b170c1",
    "signature": "0x250c7b6ad690b9cff5506da3e427cebb991a33b3705a4fb30900fe5f6aeabe4a41bdc880fa2feab6c19a8710d01f38554e210a9e48293abeaf861e67cda263611c",
    "signer": "0x2617Baa16D31c86F036F8bF0CA9dF6ca2Bb2f88B",
    "userId": "485391007"
  }
}