{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109619",
    "entityType": "User",
    "nonce": "0x3a0c2598369565e651374703e9b34956901d59838ac4286e5b80538e16b53772",
    "signature": "0x76a5dd3be5e38ae92c32536f2f65af98a4986ed7eeb44c24f2fbac901ede00d85b1f8c0321b1df718d0a039b751c31d8591c2b895e9b17e61b80091b76e90e3a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}