{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357225773",
    "entityType": "User",
    "nonce": "0x62c89b151ae39f3f3685cf0f9896a21fe50291d178275b94bb725d2133ddb633",
    "signature": "0xb549659f97bf305c359c241ce102aa07f42cd4d144691e0ebcaf0459488075c1148e7db1f84e2903ba985be324ffec4d7c69fcf5b049ed5e6a798a51aa9d9e951c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}