{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3697",
    "entityType": "User",
    "nonce": "0x10f9f2a3813781714848736ebd684c5748edcc76b40911be7eb887d5dc490a44",
    "signature": "0x78f2d1d7f873ecfd2947525520e48f4b1470d93c773e6510c64d2c1f577821725f94116b62465248fdf903720ac9393bf229a4d798fc795d07b22676a01cd3941c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}