{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xf0b29a1eea233b054c4f63ebf773e803387edff88b3e6841e388691cb36450f8",
    "signature": "0x86b8554d27cc01483bfb22e506c4cdb7c1692c04cbfe5f20f2028e60ca27cba37da0c26fba59998ade4cdf106f56ffdc5359e7a1b41c7eafa0372b777aca48591c",
    "signer": "0xDB1529DAEb2cB5c0C5d2dEA55094A5c58c08df37",
    "userId": "854973001"
  }
}