{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123985",
    "entityType": "User",
    "nonce": "0xe4bd177ca50951b7676cbd8ae03e319d12adf175273e00fb2e5905f6848e91ed",
    "signature": "0x7334e246a58e8a2e7b187a3b9630a18856603920ffa3021ba437b12ceb20ded5639d041ba99d9cd3f439c2c3c2ce2ccd9d02309710c9619d9d03bf22c5642c1d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}