{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "246308164",
    "entityType": "User",
    "nonce": "0xa20ed1d1cc376b0d04fc43905c40253b2823d325399994d26dc53ead91bb4734",
    "signature": "0x12f848fca1ad5aa5d1b68fc88d842102a210b46d898b9d28f227754018ed08d029b7dd6c83ca16aa46024674e4ffce1fc74214e711f6ab2b793de1e2a16dd5291b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}