{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x471ecd0f3e07a4d8460f2201400a6d887929cf0fc826fcd2a0fea1d7df43b65d",
    "signature": "0xd05163a9c512144a74f66071f3477ab1ac0d8f11f6198162e2db0dc5a05186fe00f4b9155f4cea2c79b9a5f11c1f8422a92ee955916874fc0f97605dbcd3dc471c",
    "signer": "0x925FD98278b43515bb81b9840D50f4D349CC6266",
    "userId": "102152128"
  }
}