{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa09cc3238cc6d50149bc9cfde558a6d32e336d3bbf24190ad48f61cd376c0c6d",
    "signature": "0x58b6550ae5ac41bd728390f83b2997ca67ac61e74f455722fea48b08c628c16b7c9e4aad74daa737323064c775d93929af2af788caeea7741cd453f46bac852b1c",
    "signer": "0xa4b76CF50dcb938e167233D817ef6C9DCf2B82c8",
    "userId": "393072547"
  }
}