{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xf8a8ae67267e05e92a270ecd9a314aeed0bb95f11e842cd0cb05f9cb3b3e54cb",
    "signature": "0x8b359a7defe4dacb01d9176818d323f4e336b802aeffd4448aece6a229340fee7a0df5d57b823be7b2edd32fbd4b1aa1bce91e9dd28e301803d2368ca245eb321b",
    "signer": "0xf4932982eB30F083aAeE8850Fe5d411b7A5Df5a5",
    "userId": "746635137"
  }
}