{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1b4795f5a36a7198373edc6b6e7bff7897b085fe8f1f8c9366ecf30a927533cc",
    "signature": "0xa37f33e61bdf7525f87999bf3aa5e1b0fa757b30127ff051bd9927c98f115ada71de65c638ff101749debbd2b6836da08fc42a337c9d0bcaa6bcac862c7d49b11c",
    "signer": "0xEBA31e15969CB81cbb52c9C69AEB77Deda7bDb5e",
    "userId": "93557176"
  }
}