{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40758",
    "entityType": "User",
    "nonce": "0x603f6234f3b05f5a66bde585cc8f7a681c762784b48eb7b9e85e866f6b281252",
    "signature": "0x1148492fa84ea51a8a5c99c9d0f46803ae4e745798e95e2ea7402448da40ecc6546aa68796b636f915c366251c0ef20ca5d0d31ecdeeee118225e95eaaf03c7d1c",
    "signer": "0xC90e14007305577f04e5F4f5542B2191bB2c7394",
    "userId": "1856608"
  }
}