{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48341",
    "entityType": "User",
    "nonce": "0x6c87c971988a37c63231bc6737bd987848752c1082a1b3ade15cf57f88b47777",
    "signature": "0x2601bbae867888b2c0fd09f01b59fd7d38bae3515eaae9ab0265c945803e0a942226012272e83c622b6d4ef047eb2fdc5f9db0a81dc0041b0b0213116bc7a8991c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}