{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x54bada237018bbab13a694a3b9c57a8ad13888bcbefc274073803c09cf7f6f2d",
    "signature": "0xe51db442c8df3d3eeb1cd0a5bb520edb6e48496f9fc12f19624dc131bca34ff348752f37547e3a06181542c95a50d7b924029a79512081aa66395c26e5412ef61b",
    "signer": "0x25ec36593ef5abE8663D916865ef8DD80BE4c1D2",
    "userId": "91562943"
  }
}