{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe5d2bb5901dcbcca8684f86d16a3f7628b591de6b6db3d1dc649865512550197",
    "signature": "0x0ed237da3632f75c350d49d1dc961f1b99624b3e7c09a953b2a6a8e8fc8964de1c524bca1c495ef228d0948badc7c4431e7e66a8ffa7b338bfd92aa9692b39791b",
    "signer": "0x216825d141Adea3A0A5a65aD345DB831Df6fF225",
    "userId": "842509080"
  }
}