{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73678",
    "entityType": "User",
    "nonce": "0xd2b4b091f60e3a2cae7f46df3c8f7d9ce0c8c0272b78ea55da2f0b5344be02b3",
    "signature": "0xdbfdcd531763008d95a420ffe1128f1b4e4c2d0ae0d71a40dbdd9e4462698bea3bc72148b6eae4106c982e14918b7ac7586ddb97420f495eb7c68d6be298be1c1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}