{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72538",
    "entityType": "User",
    "nonce": "0xf6128f39080901fa3aecfbae8f1ba0ca9e3c78618f846859c068381d13780fc6",
    "signature": "0x4fe6aa7eb7730c46cb55f64a05d98c1d93b9a9243923f21f01b5815098418ec059d251b2a31928abe7a1d9144d0e7346220d38997ca331a828ee0b3ce0353b731b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}