{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75740",
    "entityType": "User",
    "nonce": "0xb1cab9b734f3c3a9928c01ded97194693174c7f7d465b273bbd3a09e5b8dc0f1",
    "signature": "0x638f022f957bde830b951721dfc3a7c23b1f69392815388535e2492038a297d671f6438baa5347e6f8e25b2b2004c85a77bfe7d54074b86af384f7fd78c5e4d81b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}