{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "207842",
    "entityType": "User",
    "nonce": "0x44c99366b828737f6e98db80f2bfe4353c722efec9b283ef8405c52447ed9cd3",
    "signature": "0xc20a6c91fbe42c01cfdc0a5987ebecc9b2e2963f8bd9074f4722298e4a689bc74246c6850165b7dc5c7333dbc36d55aec79e99c9c0d64a577cf55d080b59b2631b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}