{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x6a2614a7388bf5308aadd22f4d409bd7f5804ca58be7e9fd0fb35af73e008224",
    "signature": "0x8c5b8e5ec5304d2c30011838b780cb208cb17650c14fae5943f85c31597ced2834c87222b748961a2628891aa76401842767eb9266689c07ae8460b1563179ce1b",
    "signer": "0xc6Ad7F06811d6A88C31184481367Ea3716C9EDeF",
    "userId": "600661494"
  }
}