{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9c8f2d14de0180c9411d8ee448c4f6c5769fcb24ff16795ad12d97211ebb3c5b",
    "signature": "0xd9c8cc2fc7efd4bfd493b2fcd6029f7431eaa551ca57bce1c01bc4f78cf28a796dcf375a51fc46c4f8242d1c7d45cd6f5a075eb659c1085102fb4743411bbe5c1c",
    "signer": "0xCfbE835B75FD5F0aA89ef2B26E43ea4b5AFa873B",
    "userId": "15292436"
  }
}