{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100393",
    "entityType": "User",
    "nonce": "0x646be784c65c8950b6751ce7bdeba44548b111302d2676cd21d3013586d5edca",
    "signature": "0xeea9a6d352a26f309faa6b1a5bef4684f57405b1d2cffd9bf0d39009541d638d7a06be4d09d041ff7e7d244b216e1d95d79144b759a076a3173171d5876831931b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}