{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x6e7b922289dc768aa707281b5b4e80c393da745ac645c2cab65a57028545d4ad",
    "signature": "0xa76cf4bf629a4e661db10be5d0b5699174e0209b964151dbb73cd3362a1f2f8431ace52d7515108847584e3f9917db874691fcdfc680cbe075a649653af4d8ae1b",
    "signer": "0x6667a1A099d3e340AeE3b64579cA139546d87216",
    "userId": "915459340"
  }
}