{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77820",
    "entityType": "User",
    "nonce": "0x2560890f1620b83529934e7177c55e1b5211a5b8db9c3c155b7f4aefabca8285",
    "signature": "0xdae1ce393b3443f763839703fa4f0f3aebab61915ef71088e82995bd14897e6178f2992c087ce3a6641a8c24ab7d703408dd0594ecf86fa75eb4a998c5c8c97e1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}