{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1782bb6de7596cf80482ea4fd05a32fa3eee49802de848e0d3b34fee697b8f6e",
    "signature": "0x0ecd0ceb77dc584640eee5bee1ceb9246d7a0828ba28af5d359697c18e84b495519fb3528beb9acae1d391598fe4c3b312a84da34ce89a2e1b7dedec078c57321c",
    "signer": "0x4C92377d983252B7dc523E5805d67C584055803a",
    "userId": "588783054"
  }
}