{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "758745",
    "entityType": "User",
    "nonce": "0x7df12d150645065577d4638bd422d4014e33f8858886e65bbd0da17e5305fcb9",
    "signature": "0x7914cc4250010ce7ce0a059772d1340970b125d005b41ea81a55f022e33df4e20b922fd6899dbb24cd64a2ef78b31fa8dcff30302e9fec3abc4d678ab06557131c",
    "signer": "0x243fca01917160fC3766B18959ff92e4179161Ef",
    "userId": "164996"
  }
}