{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x6c16a2d7418337cc99157efe88729cfab4e4fb7842c87213af0956b2039e5f96",
    "signature": "0x1e49c4d97e5bcd5bec336ef9a7e5f0b00efff235263fcb8fccce6bb879175e7600ada6962dab666ed9fd572365ff5a28e908cb2a641f9da14f1b3ea8ea87ce161b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}