{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "533199925",
    "entityType": "User",
    "nonce": "0x7a600d0b41d3113a27d18552e8cbdd0174c058189b659ee960fe7b401120f23c",
    "signature": "0x0fa671ed3073ab6bcaa00f6c962087597b4e7dfa1b357d55f85e1f47cff64ff21f88fbeb616bbe529f7e952d42e011cead2c7911cf548e64f763a97002f45ad21c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}