{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759469",
    "entityType": "User",
    "nonce": "0x8aefac270b2423eb0cb4136c9641ad3f0adb2282c09c74e7044e0cba32247dbd",
    "signature": "0xe13734c633cbe96bf6a3bf450618a484522bdc438332e4a0e2b98d0adb8b9931471e4504af065699d1f0cd30db43cb09e1a329edf942730bdff81560bae632251c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}