{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "734009",
    "entityType": "User",
    "nonce": "0xc48431c780bc9553c2efaaad8573a51529e579b449ee610fd15dcea8dc5d6c2a",
    "signature": "0x2f337b30c68fd59a99a2a665a7a493bee52c748d7ac97cef7b9d7d15cc0929b203a16a4011280bd5931c6c0a44bcce56b0f33a8a2c754d4df61e240d0b99f7461c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}