{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342366",
    "entityType": "User",
    "nonce": "0x2a884363a11aef4c73a39ed770115ade964825b6e6574c878ea345838c02c012",
    "signature": "0x358a9d24e268ccfbde8896550b781ac9be7be1b03f8b44a9a10217773630086d06bb7f841fbf1a3c14f833e704e5430bf46ebc4d33ce52642d3fb6296be836791c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}