{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214443",
    "entityType": "User",
    "nonce": "0x706ea98a57519760cb27ad0f5f6da1184752c06d7bf9254fd82b42fa804537f3",
    "signature": "0x99d5b6041404cf32e245699814ba96937efaef47bfd57d1b3fe915b6e27a352a02cf33acafa9b8b5797f26f664210349fcbb5325b0ae2a98d8c4c1e98271edc51b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}