{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x7d4c842ff4133e57dcfd7edf7d75c12e1675a1cc033e83ca19f7970d15b2441c",
    "signature": "0x923331a51421e779c341a6db837a0cea65fe90a2e80ea12333d90336f708dc814d8190045a7bb743b0258a7ef035454c26168a7d592e1ca3b69c8aa445f025f21b",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}