{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8adc968245ea54eb40a4757245cf0e75abbcd1adc0483877b4d17ef66f9b7c26",
    "signature": "0x5acb29e5ec4163e6c65b8ae14abe7226c030eba15913db68e0182b330d0217ee4a78e2dbc13c72e5a12f5775eb92cc414a1f30d460f6f10f872e70c541e79da31b",
    "signer": "0x80E1941e1c1c132CD01Ab8DBf3A20A0Eb62929B6",
    "userId": "199063103"
  }
}