{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x82216e86b7c4274cc5858e41319b83184a68db3d46f816de54c150bad25b7cbe",
    "signature": "0x563f495c773a3fb0ee6427550232e6492af49949afd4d25bd7fc8df13fa170d0045153962b1cd0a34122f0457b5beec299c98fbef02c531f6ceb38a5e0b60ad71c",
    "signer": "0xc0621be31c1D1B62b94F2d48eE34dD3c3dA9D57d",
    "userId": "161438318"
  }
}