{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342901033",
    "entityType": "User",
    "nonce": "0x2e5e742314396c5a806f791b0dd17cab0524ef5801f46499f360e40531515090",
    "signature": "0xc85912c0e9f06d4074197a5e05f085bea21f8fd61b35d8ea99325096470418f42860c2d70155bb21af5f19ba8feb029d6a8da490b936b7a8507fa9ab948e6a941c",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}