{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0x81d4e0c2452922c20cac91b0874045bf9adea2726503780f3b4a471a961510fc",
    "signature": "0x3ee7abb72690cfd7414a22ebb946a551771363eb0c76456f0a1f807f77768e5743e809a5ad7e9b5f0b34ba035604823695a6002539e053aa5c6015d9237d83c41b",
    "signer": "0x7Fa5a67C00c48DCA54f12c80579B583FcD79a330",
    "userId": "527480232"
  }
}