{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105879",
    "entityType": "User",
    "nonce": "0x6ee8d2703e2e48088e1910a73dc08ccb8da434fd6d5e20643cfe55a40cbcaff5",
    "signature": "0x41866b454fce9e15467119b919c4dcc6f4d410ffa2127a28b55aaab972cc6eef37236faaef86c47877eb389baa881656c29bea90f7042471f07fe06d0b83c8ed1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}