{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125488",
    "entityType": "User",
    "nonce": "0x3fb143bc244bd931ce1a7eefd69df951d63152ecd5b1f5e189bf34f5890f77ac",
    "signature": "0xdd81ab55c00a2f7801544096979d01c1cbca2813822af730659d6fca1c70db9437abb7b73aba04886bbbb91f90e75db196439d6b0a200b54a6bc85b6760209401c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}