{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1452833",
    "entityType": "User",
    "nonce": "0x35d7c9f750acac6a0730ba0ef45f2473fc5a33e91768251cde881bed04fe23eb",
    "signature": "0x364a6cd43744ef4816dd68df4af832a24174552df1716f32f78aa8744c819d1a53fbde1143ade87f134365e52af78ae603b8b76456b1c5f58b4ec69061163bde1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}