{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c5bf35e39b5d176d3e9369ab1664663a51608f83da2557c0eca86e476e4cf71",
    "signature": "0xa849f663f9715b7b251ca275144ebef41479b725041a4dbf079768730dcfc4ae6eaf8344fa6ba25e05b5b78d548a00231e7a0717670a1dcf8c45de3b5d4bf9501c",
    "signer": "0xeb150E8238F757a2A61d74CFd698e15A56b70DeA",
    "userId": "169232387"
  }
}