{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967911423",
    "entityType": "User",
    "nonce": "0xcfc72cd7be9bc9918c1826c725a909b110bfb0650e5dee4a1da216fbc69e14c6",
    "signature": "0x4303686e11a4f35f0f4a7a5876b6550ef85e2256b6162cf6fa45150d5d6ba7c943bb74a70d43e9914a1ed3f47d6322f2b0c807e965ffeb09b1705914959cfa0a1b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}