{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "463659082",
    "entityType": "User",
    "nonce": "0x2932f6aadb534cab8404fa17ca5259a4c9e82905044e5d0ff2969c29ad201b2d",
    "signature": "0x7944d336d0fc9f3453a2e49919549cfb043acecdefda7bab3cacfcf08ce333115b46a3109c4c17072677bceff8e81add0b3c1a5a780f530e0cb5f60d62980fc71b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}