{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "267657235",
    "entityType": "User",
    "nonce": "0xc7e6d7f3dfff6ddc0c66f2cc56ecb313bb1f8b8c032d73e6477231208e84d73a",
    "signature": "0xcbb7801d51e8827d59161ce719e6e2028f6c2aa074c5dd07f3932cb5ecd9f15a5dfe2f34f56d8c6ff1fc410fa7c84310a979b0623f27a15025bbb3e29fac8b361b",
    "signer": "0xfe73cd4bc8E45c5aC794633336A85475bD51b0f2",
    "userId": "284924323"
  }
}