{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "375331191",
    "entityType": "User",
    "nonce": "0x0008ac11e3b5f89df90f4797042eb2d7be999e7aac75354e3369a967e66f3c5f",
    "signature": "0x4d1d8c1653c5d106d041f387043e88165c144728e9bcde1a2cdc339f9dc8658d225a1fd9e0e202543bcba407b250a8fb8cf4353dfa39f4259ee500c3160d9c9e1c",
    "signer": "0x6015AC6ad37b0328C10a529E70348751FE8ffF41",
    "userId": "176201"
  }
}