{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149878501",
    "entityType": "User",
    "nonce": "0x349206cd41852aecf7206d373abd3e1b253f3374ca7717342695fe7d22cce3ad",
    "signature": "0xcb4b0bcd81a69f6a24cb55368a118077c138953c9992eb64cfe757108d1d60920c491595573fb2da5d5858ef62ef9945ff841c966d870030e5a836915208f3c71b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}