{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53039",
    "entityType": "User",
    "nonce": "0xe1042978eaae06ba40e7cc3ee64bfd825091c5495440e330a922822f444f9297",
    "signature": "0xc40291acd7990655e03e290e5aef431b6c8a9ec42813e5d0747c5b9e8cbdac9915e30e29230f7efbbf7ae08b019657124f63e26fb2b0eeb017822bd669f03d8b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}