{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x103f1a186d224f104f9c531395fe4956638e0f5cba3c593cfdd86da3a8c3342f",
    "signature": "0x5025526e25cea57024f751dcc461066ba4cf976dd09f82bbe4b18ffd16b1f91d75857404da9e1a20ac8799546577ee3258a177fd9a3bcd9f0876e373b10e52611c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}