{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258474",
    "entityType": "User",
    "nonce": "0xc293a2e233a5ad7c3478e5ca67e553286e8d835f46af9cbef1f8ecd8c8db80bb",
    "signature": "0xed757197afbde5b6d9646205e95d7b88af5e4b819ee120e11af3fb64dfd82e0714751ae604b4072a22ec2f5507b39036b8b1143fdbc484a6be46a1e185be9d5e1c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}