{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb49c10b888bf9a8abdf227793560327ef97b4eb79f95c7f3b53c432b1969d124",
    "signature": "0x92cc9671ff653e07e3879349b73d71ca0429ed74bae9f2bdf38b0457f41776f577a08a2ac9a0429ce2e2b1d8a2cc102e9e7728764e0c06cd26936bde5f2a4e2c1b",
    "signer": "0x3606D196411cfFBc994b5d1fA493b4FE439A15e5",
    "userId": "871511642"
  }
}