{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4589",
    "entityType": "User",
    "nonce": "0x43f28489c7777542912314d41c15ba5244397684999f584945f7f194eda00db8",
    "signature": "0x230f5e0c4697fefd2ce9693fad815aabb647150fc2513d93e5c98e3874705da218e768fb89b0bed7edfd9ac8a0c908acc130e499d0a2a9d85d9b39bfa8b4f60f1b",
    "signer": "0xeF348052294c4A7ca6c90B153691EA0a0Ef29315",
    "userId": "820515145"
  }
}