{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "261090887",
    "entityType": "User",
    "nonce": "0x25f853ddeaf55e1b57f62b6670f6f8180f5439c52ceaf03f6b1a7e212ba682f2",
    "signature": "0xdd6fcc5fec686dc9992dd5744b15965982f09e963916184832ece10c4b4b941b6648936d641e607f432d8ae098a3516127bc35791f180c2c67f78fb5ad3ee7281b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}