{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6ad67617010cc79dc711d5eac98dbbd1b4335ecfce829989482e4e799026b789",
    "signature": "0x772418f36f4b19e95972683da06d5ad16077d0cab83f38134d28a28a0d2d6d5763b134435a54172ca7e8705537dd45412bf6d6629de093d745fbe11093f836741c",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}