{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66749",
    "entityType": "User",
    "nonce": "0xf1ce6fad01cea8d6754203fd79890e5339f504853c92b265637f378d4dd795ae",
    "signature": "0x525c986f7093f0483494789265c5f4eba5878d36ba5ceed946859225cc28e3da70669af1be1e7d49cbd10f75d9656815c2c9ac1ca2bdf3f128c4844a9ed21b6a1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}