{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304091",
    "entityType": "User",
    "nonce": "0x40fb52a0735df071f24f9031187821fa99d0807941333a26815baa282f46e178",
    "signature": "0x3effb1c03dfc663e3d6d354f8cde11d15450e20b4d532a9bd08c168abfd28bfc624ff13b31f712921d9fa8944d93ab655f580ba82e32e584046cd9b7147076c81c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}