{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x45dfb865ed9310e20d0bb339eb1f500b0910f856d72b46492eb2554bbdc6fd43",
    "signature": "0xe6a3f90b73a521dabb3fe5600a6bf1c4983e19b34ab6b2ab24d27fcd9b90a13304b8d7139d9162acca4e83c6fcb91fae612f83dada57063e858d4e386dd9b0971c",
    "signer": "0x989b916868600DBE345598dA58094A4216f8103f",
    "userId": "347069473"
  }
}