{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180453",
    "entityType": "User",
    "nonce": "0xab6c5cab4360e68f55e74d1014e57f1450817e642e23b5e52980c7a4a860b90a",
    "signature": "0xf14e437827879b4c193815d77b97ee4bccedeb831e6313306014cf24e7dbc47f5a913997a39dc716e2aa0addeacdda27cf0193e23596622cf2858d3ae6599f021c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}