{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x171476dc623886017e8d0d2f4740665defabec463d3ae9f6a4dfd214c24101c8",
    "signature": "0x23231f5c67a3034e28b4672fce2018c0c802f6b9190e9e1cd86f73effbaf892231650a13073bbe792cbcb98f51cc150c390aef8e1dba690771fcc68c0c8b6b461b",
    "signer": "0x17ed395bcd6e19a273d4ED94428997b605814e87",
    "userId": "970983084"
  }
}